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995455 - Disclosure - Organization
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995475 - Disclosure - Acquisition
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995885 - Disclosure - Variable Interest Entities - Additional Information (Details)
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995895 - Disclosure - Variable Interest Entities - Schedule of Assets of Consolidated Funds Measured at Fair Value on a Recurring Basis (Details)
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995925 - Disclosure - Segment Reporting - Additional Information (Details)
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995935 - Disclosure - Segment Reporting - Schedule of Operating Financial Results of Operating Segment (Details)
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995945 - Disclosure - Identifiable Intangible Assets, Net - Summary of Intangible Assets (Details)
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995955 - Disclosure - Identifiable Intangible Assets, Net - Additional Information (Details)
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995965 - Disclosure - Identifiable Intangible Assets, Net - Summary of Estimated Aggregate Amortization Expense (Details)
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995985 - Disclosure - Lessee Operating Leases - Schedule of Operating and Variable Lease Cost (Details)
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995995 - Disclosure - Lessee Operating Leases - Schedule of Details of Leases Presented in Balance Sheets (Details)
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996005 - Disclosure - Lessee Operating Leases - Schedule of Maturity Analysis of the Company's Operating Lease Liabilities (Details)
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996015 - Disclosure - Lessee Operating Leases - Schedule of Maturity Analysis of the Company's Operating Lease Liabilities (Details) 2
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996025 - Disclosure - Lessee Operating Leases - Additional Information (Details)
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996035 - Disclosure - Debt - Additional Information (Details)
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996045 - Disclosure - Debt - Schedule of Debt (Details)
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996055 - Disclosure - Convertible Notes - Additional Information (Details)
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996065 - Disclosure - Earnings per Share - Earnings Per Share, Basic and Diluted (Details)
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996075 - Disclosure - Earnings per Share - Earnings Per Share, Basic and Diluted (Details) 2
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996085 - Disclosure - Earnings per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)
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996095 - Disclosure - Equity Transactions - Additional Information (Details)
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996105 - Disclosure - Share-Based and Other Non-Cash Compensation - Activity of Restricted Stock Awards and Restricted Stock Units (Details)
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996115 - Disclosure - Share-Based and Other Non-Cash Compensation - Restricted Stock Awards and Restricted Stock Units - Additional Information (Details)
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996125 - Disclosure - Share-Based and Other Non-Cash Compensation - Summary of Option Activity (Details)
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996135 - Disclosure - Share-Based and Other Non-Cash Compensation - Stock-Based Compensation Expense - Additional Information (Details)
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996145 - Disclosure - Share-Based and Other Non-Cash Compensation - Non-Employee Director Deferred Compensation Plan - Additional Information (Details)
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996155 - Disclosure - Share-Based and Other Non-Cash Compensation - Other Non-Cash Compensation - Additional Information (Details)
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996165 - Disclosure - Income Taxes - Additional Information (Details)
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996175 - Disclosure - Subsequent Events - Additional Information (Details)
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Related Party Transaction [Table]
Schedule Of Related Party Transactions By Related Party [Table]
Lessee Operating Lease Extension Period
Lease extension period
Lessee operating lease extension period.
Warrants and Rights Outstanding, Term
Warrants issuance date term
Investment Income, Interest and Dividend
Dividends and interest income
Investment Income, Interest and Dividend, Total
Debt
Debt Disclosure [Text Block]
Operating Lease, Liability
Total lease liabilities
Total lease liabilities
Interest expense of non-cash interest related to amortization of discounts and debt issuance costs
Interest Expense, Operating and Nonoperating
Interest expense
Interest expense
Interest Expense, Total
Interest expense
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Total unrecognized compensation cost
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Underwriters' Over-allotment Option
Over-Allotment Option [Member]
Equity/Other investment measurement input
Alternative Investment, Measurement Input
Equity investment measurement input
Commitments and Contingencies
Commitments and Contingencies (Note 17)
Weighted average shares of common stock outstanding diluted
Denominator for diluted EPS - Weighted average shares of common stock outstanding after the effect of dilutive securities
Denominator for diluted EPS - Weighted average shares of common stock outstanding after the effect of dilutive securities
Diluted
Stock repurchases (in shares)
Stock Repurchased During Period, Shares
Other Receivables, Net, Current, Total
Other Receivables, Net, Current
Receivables from managed funds
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Stock-based compensation
APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total
Minimum [Member]
Minimum
Interest and other income of Consolidated Funds
Interest and Other Income of Consolidated Funds
Interest and other income of consolidated funds.
Payments for Repurchase of Redeemable Noncontrolling Interest
Distributions from non-controlling interests in Consolidated Funds
Preferred Stock, Shares Outstanding, Ending Balance
Preferred Stock, Shares Outstanding
Preferred stock, shares outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Promissory note, maturity date
Debt Instrument, Maturity Date, Description
Investment, Name [Axis]
Fair Value, Recurring Basis
Fair Value, Recurring [Member]
Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block]
Schedule of Allocation of Purchase Price to Tangible and Intangible Assets Acquired and Liabilities Assumed
Consolidated Entities [Domain]
Common Stock, Shares, Issued
Common stock, shares issued
Common Stock, Shares, Issued, Total
Segment Reporting [Line Items]
Total principal balance of Convertible Notes outstanding
Convertible notes, face value
Aggregate principal amount
Promissory note, issued
Income tax benefit (expense)
Income Tax Expense (Benefit)
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Table]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Restricted Stock Units
Restricted Stock Units (RSUs) [Member]
Common Stock Issuable upon Vesting of Restricted Stock Units and Restricted Stock Awards
Net loss
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Transfers Out
Operating Segments [Member]
Operating Segments
Intangible Asset, Finite-Lived, Class [Domain]
Finite-Lived Intangible Assets, Major Class Name
Stock Issued During Period, Value, Conversion of Convertible Securities
Shares issued convertible notes, Value
Unrealized loss on investments
Unrealized gain (loss) on investments including investments of consolidated fund.
Unrealized Gain Loss On Investments Including Investments Of Consolidated Fund
Income Tax Authority, Name [Axis]
Information pertaining to Great Elm Capital Corp, a publicly-traded business development company incorporated in Maryland.
Great Elm Capital Corp [Member]
GECC
Subsequent Event Type [Domain]
Selling And General And Administrative Expense
Selling and general and administrative expense
Selling, general and administrative
Variable Interest Entity, Measure of Activity [Abstract]
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Imputed interest
Imputed interest
Restricted stock
Incremental Common Shares Attributable To Restricted Stock
Incremental common shares attributable to restricted stock.
Net proceeds from sale of real estate.
Proceeds from sale of real estate
Net Proceeds From Sale Of Real Estate
Deferred compensation, service period
Deferred Compensation Arrangement with Individual, Requisite Service Period
Payment for (Proceeds from) Other Investing Activity
Other
Valuation, Income Approach [Member]
Income Approach
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Table]
Income Statement [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration
Net operating loss carryforwards, not subject to expiration
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Forfeited
Lease, Cost [Table Text Block]
Schedule of Operating and Variable Lease Cost
Assets of Consolidated Funds - Other Assets
Assets of Consolidated Funds - Other assets
Assets of consolidated funds - other assets.
Related and Nonrelated Parties [Domain]
Related Party
Intangible Asset, Finite-Lived [Table]
Schedule Of Finite Lived Intangible Assets [Table]
Basic net income per share
Basic
Basic loss per share
Earnings Per Share, Basic
Document Period End Date
Document Period End Date
Consideration from property sold
Proceeds from Sale, Property, Held-for-Sale
Receivable for reimbursable expenses paid.
Receivable For Reimbursable Expenses Paid
Receivable for reimbursable expenses paid
Remainder of fiscal year 2027
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year
Document Information [Table]
Investment management expenses.
Investment Management Expenses [Member]
Investment Management Expenses
Deferred financing costs are amortized to interest expense on a straight-line term
Deferred financing costs are amortized to interest expense on a straight-line term
Deferred financing costs are amortized to interest expense on a straight-line term
Intangible Asset, Finite-Lived, after Accumulated Amortization
Identifiable intangible assets, net
Net Carrying Amount
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net, Ending Balance
Tax Period [Axis]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Granted
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Investment Owned, Balance, Shares
Number of shares held in subsidiary
Common Stock, Shares Authorized
Common stock, shares authorized
For the year ending June 30, 2029
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two
Statement of Stockholders' Equity [Abstract]
Prepaid Expense and Other Assets, Current
Prepaid and other current assets
Share-based compensation arrangement by share-based payment award options aggregate intrinsic value.
Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract]
Aggregate intrinsic value
Variable Interest Entities [Abstract]
Variable Interest Entities.
Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities of Consolidated Funds [Abstract]
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities of consolidated funds.
Adjustments to reconcile net loss to net cash flows from operating activities of Consolidated Funds:
Debt Instrument, Interest Rate, Stated Percentage
Accrued interest rate on notes payable
Interest rate
PPH
Prosper Peak Holdings LLC [Member]
Prosper Peak Holdings LLC.
Related party loan receivable
Proceeds from Collection of (Payments to Fund) Long-Term Loans to Related Parties
Proceeds from Collection of (Payments to Fund) Long-Term Loans to Related Parties, Total
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Disaggregation of Revenue [Table]
Disaggregation Of Revenue [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Outstanding
Unamortized debt issuance costs
Unamortized Debt Issuance Expense
Supplemental cash flow elements
Supplemental Cash Flow Elements [Abstract]
Assets
Total assets
Title of 12(b) Security
Title of each class
Promissory note, frequency of periodic payment
Goodwill
Goodwill, Ending Balance
Goodwill, Beginning Balance
Goodwill, Total
Preferred Stock, Value, Issued
Preferred stock, $0.001 par value; 5,000,000 authorized and zero outstanding
Preferred Stock, Value, Issued, Total
Preferred Stock, Value, Issued, Beginning Balance
Preferred Stock, Value, Issued, Ending Balance
Document Document And Entity Information Abstract
Document Document And Entity Information [Abstract]
Document - Document and Entity Information [Abstract]
Stock repurchases
Share repurchases
Payments for Repurchase of Common Stock
Related Party Transaction [Axis]
Related Party Transaction
Cash and cash equivalents
Increase (Decrease) In Cash and Cash Equivalents From Consolidated Funds
Increase (decrease) in cash and cash equivalents from consolidated funds.
Restricted stock awards outstanding
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Ending Balance
Beginning Balance
Monomoy REIT Restricted [Member]
Monomoy reit restricted.
Monomoy REIT Restricted
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Title and Position [Domain]
Operating Lease, Payments
Cash paid for operating leases
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Activity of Restricted Stock Awards and Restricted Stock Units
Antidilutive Securities, Name [Domain]
Remainder of fiscal year 2027
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price
MP II Restricted
MP II restricted member.
MP II Restricted [Member]
Accrued expenses and other liabilities
Increase (Decrease) In Accrued Expenses and Other Liabilities
Increase (decrease) in accrued expenses and other liabilities.
Cash paid for interest
Interest Paid, Excluding Capitalized Interest, Operating Activity
Great Elm Capital Management Inc [Member]
Great elm capital management Inc.
GECM
Other assets
Other assets
Increase (Decrease) In Other Operating Assets of Consolidated Funds
Increase (decrease) in other operating assets of consolidated funds.
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration
Net operating loss carryforwards, subject to expiration
For the year ending June 30, 2028
Lessee, Operating Lease, Liability, to be Paid, Year One
Real Estate [Abstract]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term
Outstanding
Securities Purchase Agreement [Member]
Securities purchase agreement.
Securities Purchase Agreement
Disaggregation of Revenue [Table Text Block]
Summary of Major Source of Revenue
Segment Reporting [Table Text Block]
Schedule of Operating Financial Results of Our Operating Segment
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Lease Liabilities
Increase (Decrease) in Operating Lease Liability
Lessee Operating Leases
Lessee, Operating Leases [Text Block]
For the year ending June 30, 2031
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four
Mr. Drapkin and Funds
Drapkin and Funds [Member]
Drapkin and funds.
Total Great Elm Group, Inc. stockholders' equity
Carrying value of non-controlling interest prior to sale (permanent equity)
Equity, Attributable to Parent
Stockholders' Equity Attributable to Parent, Beginning Balance
Stockholders' Equity Attributable to Parent, Ending Balance
Total Great Elm Group, Inc Stockholder's Equity
Management Service, Incentive [Member]
Incentive fees
Incentive Fees
Valuation Approach and Technique [Domain]
GEG
Great Elm Group, Inc [Member]
Great Elm Group, Inc.
Great Elm Group
Consolidated funds
Consolidated Funds
Consolidated funds.
Entity Address, Address Line Two
Entity Address, Address Line Two
Other Assets, Noncurrent
Other assets
Other Assets, Noncurrent, Total
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Income Taxes
Income Tax Disclosure [Text Block]
Maximum equity Interest Percentage
Maximum equity Interest Percentage.
Maximum equity interest percentage
Earnings Per Share [Text Block]
Earnings per Share
Long term debt, face value
Long-Term Debt, Fair Value
Fair value of debt notes
Share Repurchase Program [Line Items]
Weighted Average [Member]
Weighted Average
Number of Reportable Segments
Number of reportable segments
Investment Owned, Balance, Principal Amount
Investment amount in subsidiary
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value
Real Estate [Table]
Basis of Accounting, Policy [Policy Text Block]
Basis of Presentation
Real estate assets, net
Real Estate Assets Net
Real estate assets, net.
Debt
Long-Term Debt
Credit Facility [Axis]
Credit Facility
Incentive fees as per the terms of investment management agreements
Incentive Fee Earned Based On Investment Performance
Incentive fee earned based on investment performance.
Organization disclosure.
Organization Disclosure [Text Block]
Organization
Corporate & Other
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Restricted Stock [Member]
Restricted Stock
Restricted Stock Awards
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Vested
Share-based compensation arrangement by share-based payment award, options, weighted average remaining contractual term.
Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract]
Weighted average remaining contractual term
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Reconciliation of Changes in Fair Value of Level 3 Assets
Geographical [Domain]
For the year ending June 30, 2030
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three
Statistical Measurement [Axis]
Statistical Measurement
Interest Expense, Other
Interest expense other borrowings
Entity Interactive Data Current
Entity Interactive Data Current
Lessee, Operating Lease, Liability, to be Paid, Year Three
For the year ending June 30, 2030
Common stock, $0.001 par value; 350,000,000 shares authorized and 30,940,370 shares issued and 29,941,200 outstanding at September 30, 2026; and 31,139,625 shares issued and 29,778,239 outstanding at June 30, 2026
Common Stock, Value, Issued
Common Stock, Value, Issued, Total
Common Stock, Value, Issued, Beginning Balance
Common Stock, Value, Issued, Ending Balance
Aggregate purchase price
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Earnings Per Share, Basic and Diluted
Liabilities
Total Liabilities
Total liabilities
Cost of Revenue
Cost of revenues
Unamortized debt discounts and issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net, Total
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
Restricted Stock, Value, Shares Issued Net of Tax Withholdings
Withholding tax payments related to restricted stock
Other Noncash Income (Expense)
Other Noncash Income (Expense), Total
Other non-cash expense, net
Acquisition
Business Combination [Text Block]
Interest on Convertible Debt, Net of Tax
Interest expense associated with Convertible Notes, continuing operations
Interest expense associated with Convertible Notes
Short-Term Debt, Fair Value
Short term debt, face value
Product and Service [Axis]
Product and Service
Accumulated deficit
Retained Earnings (Accumulated Deficit), Total
Retained Earnings (Accumulated Deficit), Beginning Balance
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit), Ending Balance
Level 3
Fair Value, Inputs, Level 3 [Member]
Fair Value, Inputs, Level 3
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Amortization of premium and accretion of discount, net
Amortization Of Premium And Accretion Of Discount, Net
Amortization of premium and accretion of discount, net.
Equity Method Investment, Ownership Percentage
Percentage of ownership interest (as a percent)
Total operating costs and expenses
Operating Expenses
Operating expenses
Increase in equity Interest Percentage
Increase in equity Interest Percentage.
Increase in equity interest percentage
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Purchases
Monomoy REIT [Member]
Monomoy REIT
Monomoy REIT.
Disaggregation of Revenue [Line Items]
Disaggregation Of Revenue [Line Items]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities:
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Vesting period
Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Abstract]
Stock Issued During Period, Shares, New Issues
Issuance of common stock related to equity transactions, net (in shares)
Convertible Debt Securities [Member]
Convertible Notes
Class of Warrant or Right, Outstanding
Warrants of common stock shares
Intangible Asset, Finite-Lived, Accumulated Amortization
Accumulated Amortization
Increase (Decrease) in Accounts Payable, Related Parties
Related party payables
Deferred Tax Assets, Operating Loss Carryforwards, Domestic
Federal net operating loss carryforwards
Incentive fee earned as percentage on investment performance.
Incentive Fee Earned As Percentage On Investment Performance
Incentive fee earned as percentage on investment performance
Stock repurchases
Stock repurchases
Stock Repurchased During Period, Value
Restricted stock awards, restricted stock units and stock options member.
Restricted Stock Awards And Restricted Stock Units And Stock Options [Member]
Restricted Stock Awards and Restricted Stock Units and Stock Options
Convertible notes.
Convertible Notes [Text Block]
Convertible Notes
Operating Costs and Expenses, Total
Operating Costs and Expenses
Costs incurred under agreement
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Forfeited, cancelled or expired
Related Party Transactions [Abstract]
Operating Lease, Cost
Operating lease cost
Long-Lived Asset, Class [Axis]
Subsequent Events [Text Block]
Subsequent Events
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Fair value asset transfers into level 3
Transfers In
Debt Securities, Trading, Measurement Input
Debt securities measurement input
Debt investment measurement input
Capitalized Cost Within Real Estate Assets
Capitalized cost within real estate assets.
Capitalized costs within real estate assets, net
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV
Series A Warrant [Member]
Series A Warrant.
Series A Warrant
Assets, Fair Value Disclosure [Abstract]
Assets:
Distributions from Consolidated Funds
Distributions from Consolidated Funds
Distributions from Consolidated Funds
Labor and Related Expense
Compensation and benefits
Number of years issued shares vest annually on pro-rata basis
Number Of Years Issued Shares Vest Annually On Pro Rata Basis
Number of years issued shares vest annually on pro-rata basis.
Operating Lease, Liability, Current
Current portion of lease liabilities
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Ending Balance
Beginning Balance
Debt Instrument, Convertible, Conversion Ratio
Net consolidated debt to equity ratio
Liabilities and Equity
Total liabilities and stockholders' equity
For the year ending June 30, 2029
Lessee, Operating Lease, Liability, to be Paid, Year Two
Series B Warrant [Member]
Series B Warrant.
Series B Warrant
Intangible Asset, Finite-Lived, Class [Axis]
Finite-Lived Intangible Assets by Major Class
Lessee, Lease, Description [Table]
Document Fiscal Period Focus
Document Fiscal Period Focus
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Sales and Paydowns
Depreciation, Depletion and Amortization, Nonproduction
Depreciation and amortization
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction, Total
Debt Instrument, Interest Rate Terms
Notes payable, interest rate description
Title and Position [Axis]
Sale of Stock [Axis]
Office Leases
Office Leases [ Member]
Office leases.
Income Tax Paid, before Refund Received
Cash paid for taxes
Net (decrease) increase in cash and cash equivalents
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Entity Current Reporting Status
Entity Current Reporting Status
Use of Estimates, Policy [Policy Text Block]
Use of Estimates
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Exercisable
Level 1
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 1
Purchase of property for rentals closed
Purchase of property for rentals closed
Purchase of property for rentals closed.
Class of Stock [Domain]
Accounts Payable, Current
Accounts payable
Accounts Payable, Current, Total
Real Estate Segment [Member]
Real Estate Segment.
Real Estate
Realized loss (gain) on investments
Realized gain on investment
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Fair value of assets
Assets, Fair Value Disclosure
Total assets
Document Transition Report
Document Transition Report
Real Estate Property Sales
Real Estate Property Sales [Member]
Real estate property sales.
Lessee Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Subsequent Event [Line Items]
Class of Warrant or Right [Axis]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Gain (Loss) on Sale of Investments
Gain (Loss) on Sale of Investments, Total
Sales of investments
Sales of investments
Net realized and unrealized loss
Net realized and unrealized loss
Net Realized And Unrealized Gain (Loss)
Net realized and unrealized gain (loss).
Liabilities, Current [Abstract]
Current liabilities:
Share-Based Payment Arrangement [Abstract]
Ending balance
Beginning balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Common Stock [Member]
Common Stock
Lessee operating lease liability payments due after year four.
Lessee Operating Lease Liability Payments Due After Year Four
Thereafter
Investment Income, Dividend
Dividend income
Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract]
Effect of dilutive securities:
Series A Warrants and Series B Warrants Member
Series A Warrants and Series B Warrants.
Series A Warrants and Series B Warrants
Credit Facility [Domain]
Credit Facility
Statistical Measurement [Domain]
Statistical Measurement
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Gross Carrying Amount
Intangible Asset, Finite-Lived, before Accumulated Amortization
Finite-Lived Intangible Assets, Gross, Total
Net realized and unrealized loss on investments of Consolidated Funds
Equity Securities, FV-NI, Gain (Loss)
Equity, Attributable to Parent [Abstract]
Stockholders' equity
Weighted Average Number of Shares Outstanding, Basic, Total
Denominator for basic EPS - Weighted average shares of common stock outstanding
Weighted average shares of common stock outstanding basic
Basic
Assets [Abstract]
ASSETS
Entity Central Index Key
Entity Central Index Key
Increase (Decrease) in Accounts Receivable, Related Parties
Receivables from managed funds
Related party loan receivable
Lease remaining term
Lessee, Operating Lease, Remaining Lease Term
Antidilutive Securities [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Exercisable
Proceeds from Sale of Short-Term Investments
Sales of investments
Consolidation Items [Axis]
Current Fiscal Year End Date
Current Fiscal Year End Date
Related Party Payable [Member]
Related party payable.
Related Party Payable
Class of Warrant or Right [Domain]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares
Document Quarterly Report
Document Quarterly Report
For the year ending June 30, 2032
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five
Debt instrument maturity date
Debt Instrument, Maturity Date
Promissory note, maturity date
Net Income (Loss) Available to Common Stockholders, Diluted
Numerator for diluted EPS - Net loss attributable to Great Elm Group, Inc. stockholders after the effect of dilutive securities
7.25% Notes due 2027
Seven Point Two Five Percent Notes Due Two Thousand Twenty Seven [Member]
Seven point Two Five percent notes due Two Thousand Twenty Seven.
Operating loss carry forwards expiration year , in CCYY format.
Operating Loss Carry Forwards Expiration Year
Operating loss carryforwards expiration period
Level 2
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 2
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Ending Balance
Beginning Balance
Fair Value Measurements [Line Items]
Fair Value Measurements.
Business Combination [Abstract]
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net cash flows from operating activities
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Diluted net income per share
Diluted
Diluted loss per share
Earnings Per Share, Diluted
Sale of Stock, Number of Shares Issued in Transaction
Sale of shares of common stock
Preferred Stock, Par or Stated Value Per Share
Preferred stock, par value
Weighted-average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Long-Lived Asset, Class [Domain]
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Fair Value, Inputs, Level 1, 2 and 3
Lease Contractual Term [Domain]
Expenses of Consolidated Funds
Expenses of consolidated funds.
Expenses Of Consolidated Funds
Measurement Frequency [Domain]
Schedule of Variable Interest Entities [Table Text Block]
Variable Interest Entities
Equity Components [Axis]
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Cash flows from investing activities:
Net realized and unrealized loss on investments
Gain (Loss) on Investments
Statement of Cash Flows [Abstract]
Internal Revenue Service (IRS) [Member]
Federal
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV
Income Tax Disclosure [Abstract]
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Prepaid Expense and Other Assets, Total
Prepaid and other assets
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Convertible Notes
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Summary of Assets and Liabilities Measured at Fair Value on Recurring and Non-recurring Basis
Jason W. Reese
Jason W. Reese.
Jason W Reese [Member]
Fair Value Disclosures [Text Block]
Fair Value Measurements
Restricted cash
Restricted Cash and Cash Equivalent
Restricted Cash and Cash Equivalents, Total
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Issuance of common stock related to vesting of restricted stock (in shares)
Depreciation, Depletion and Amortization
Depreciation and amortization
Depreciation, Depletion and Amortization, Total
Shared Personnel And Reimbursement Agreement [Member]
Shared personnel and reimbursement agreement.
Shared Personnel and Reimbursement Agreement
Preferred Stock, Shares Authorized
Preferred stock, shares authorized
Class of Stock [Axis]
Great Elm Opportunities Fund I, LP.
Great Elm Opportunities Fund I, LP [Member]
GEOF
Potentially dilutive shares excluded from diluted loss per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Total Anti-Dilutive Securities
Number Of Days Volume Weighted Average Price
Number of days volume weighted average price.
Number of days volume weighted average price
Parent [Member]
Total Great Elm Group Inc. Stockholders' Equity
Contribution amount
Contribution Amount
Contribution Amount
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Notice Period For Annually Allowable Redemptions
Notice period for annually allowable redemptions.
Notice period for annually allowable redemptions
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Ending Balance
Beginning Balance
Debt (face value $26,945)
Long-Term Debt, Current Maturities
Measurement Input, Discount Rate [Member]
Discount Rate
Intangible Asset, Goodwill and Other [Abstract]
Document Type
Document Type
Convertible Debt [Member]
Convertible Notes
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Cash flows from operating activities:
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Liabilities and Equity [Abstract]
LIABILITIES AND STOCKHOLDERS' EQUITY
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period
Forfeited, cancelled or expired
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Total
Lessee, Lease, Description [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local
Operating loss carryforward for state income tax
Subsequent Event [Member]
Subsequent Event
Accounting Standards Update [Extensible Enumeration]
Operating Income (Loss)
Operating loss
Operating loss
Operating loss
Restricted stock awards and stock options.
Restricted Stock Awards And Stock Options [Member]
Restricted Stock Awards and Stock Options
Sale of Stock, Price Per Share
Shares issued per share
Stock Issued During Period, Value, Employee Benefit Plan
Stock issued during period, value
Real estate under development
Increase Decrease In Real Estate Under Development
Increase decrease in real estate under development.
Restricted stock awards and restricted stock units.
Restricted Stock Awards and Restricted Stock Units [Member]
Restricted Stock Awards and Restricted Stock Units
Segment Reporting [Table]
Securities Act File Number
Entity File Number
Convertible notes payable held by related party non-current.
Convertible Notes Payable Held By Related Party Non Current
Convertible notes payable to related party non-current
Revenue from Contract with Customer [Text Block]
Revenue
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]
Accrued Liabilities and Other Liabilities
Accrued Liabilities and Other Liabilities, Total
Accrued expenses and other current liabilities
Schedule of Maturity Analysis of the Company's Operating Lease Liabilities
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies
Retained Earnings [Member]
Accumulated Deficit
Entity Registrant Name
Entity Registrant Name
Accounting Policies [Abstract]
Depreciation
Depreciation, Total
Depreciation expense connection with the asset
Net loss
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net income (loss)
Net loss
Nonrelated Party [Member]
Nonrelated Party
Selling, General and Administrative Expense
Selling, general and administrative
Selling, General and Administrative Expense, Total
Amount drawn upon issuance of promissory note
Proceeds from Issuance of Debt
Entity Address, Address Line One
Entity Address, Address Line One
Other Receivables
Receivables from managed funds
Receivables from managed funds
Less: net loss attributable to non-controlling interest in Consolidated Funds
Net Income (Loss) Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest, Total
Notes issued in integral multiples
Notes Issued in Integral Multiples
Notes issued in integral multiples.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Exercisable
Total current assets
Assets, Current
ICAM
Imperial Capital Asset Management, LLC.
Imperial Capital Asset Management L L C [Member]
Imperial Capital, LLC
GECC Common Shares
G E C C Common Shares [Member]
GECC common shares.
Fair Value, Recurring and Nonrecurring [Table]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Net realized and unrealized loss on investments of Consolidated Funds
Net Realized and Unrealized Gain Loss on Investments of Consolidated Funds
Net realized and unrealized gain loss on investments of consolidated funds.
Related party reimbursements due
Related Party Reimbursements Receivable
Related party reimbursements receivable.
PC Elfun
PC Elfun, LLC [Member]
PC Elfun, LLC.
Segments [Axis]
Income Tax Authority, Name [Domain]
Supplemental Cash Flow Information [Abstract]
Supplemental disclosure of cash flow information:
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Deferred Income Tax Expense (Benefit)
Deferred tax benefit
Entity Small Business
Entity Small Business
Variable Interest Entity [Line Items]
Credit Segment [Member]
Credit segment.
Credit
Alternative Credit
Warrants Exercisability Date
Warrants exercisability date.
Warrants exercisability date
Assets of Consolidated Funds - Cash and cash equivalents
Assets of Consolidated Funds - Cash and Cash Equivalents
Assets of consolidated funds - cash and cash equivalents.
Investment, Name [Domain]
Related party dividend receivable.
Related Party Dividend Receivable
Dividends receivable
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Forfeited
Long-Term Debt, Type [Axis]
Long-term Debt, Type
Preferred Stock, Dividend Rate, Percentage
Cumulative preferred distribution percentage
Consolidation Items [Domain]
Schedule of Debt
Schedule of Long-Term Debt Instruments [Table Text Block]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Real Estate [Line Items]
Earnings Per Share [Abstract]
Net loss attributable to stockholders per share
Net loss attributable to stockholders per share
Non cash interest and amortization of capitalized issuance costs.
Non Cash Interest And Amortization Of Capitalized Issuance Costs
Non-cash interest and amortization of debt issuance costs
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Summary of Option Activity
Equity/Other
Equity Method Investments, Fair Value Disclosure
Equity investments
Intangible Asset, Finite-Lived, Estimated Amortization Expense, after Year Five
Thereafter
Lessee, Operating Lease, Liability, to be Paid, Year Four
For the year ending June 30, 2031
Issuance of notes to related parties.
Issuance Of Notes To Related Parties
Issuance of notes to related parties.
Management Service, Base [Member]
Management Fees
Deferred Compensation Plan
Deferred Compensation, Share-Based Payments [Member]
Subsequent Event Type [Axis]
Great elm strategic partnership I, llc.
Great Elm Strategic Partnership I, LLC [Member]
GESP
Receivable For Real Estate Property Development
Receivable for real estate property development.
Receivable for real estate property development
Equity [Abstract]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Product and Service [Domain]
Product and Service
Equity Transactions
Equity [Text Block]
Measurement Frequency [Axis]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Cash flows from financing activities:
Matthew A. Drapkin and Funds [Member]
Matthew A. Drapkin and funds.
Matthew A. Drapkin and funds
Subsidiaries other outstanding borrowings.
Subsidiaries Other Outstanding Borrowings [Member]
Subsidiaries Other Outstanding Borrowings
Consolidated Entities [Axis]
Receivables from managed funds.
Receivables from Managed Funds [Member]
Receivables from Managed Funds
Entity Tax Identification Number
Entity Tax Identification Number
Number of common stock shares issuable upon conversion of convertible notes
Stock Issued During Period, Shares, Conversion of Convertible Securities
Valuation Approach and Technique [Axis]
Equity Component [Domain]
Entity Address, City or Town
Entity Address, City or Town
Real Estate Disclosure [Text Block]
Real Estate
Tax Period [Domain]
Measurement Input Type [Domain]
Measurement Input Type
Payments to Acquire Short-Term Investments
Purchases of investments
Intangible Asset, Finite-Lived [Line Items]
Capital Expenditures Incurred but Not yet Paid
Payable for real estate purchased
Issuance of common stock related to equity transactions, net
Stock Issued During Period, Value, New Issues
Investments, Fair Value Disclosure
Investments valued at net asset value
Investments, Fair Value Disclosure, Total
Segments [Domain]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Identifiable Intangible Assets, Net
Intangible Asset and Goodwill [Text Block]
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Denominator:
Antidilutive Security, Excluded EPS Calculation [Table]
Statement [Table]
Statement [Table]
Stock-based compensation expense
Share-Based Payment Arrangement, Expense
Stock-based compensation
Non-cash compensation
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Loss before income taxes
Loss before income taxes
Entity Shell Company
Entity Shell Company
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net cash flows from investing activities
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Market Approach
Valuation, Market Approach [Member]
Statement [Line Items]
Statement [Line Items]
Assets of Consolidated Funds - Investments, at fair value
Consolidated investments assets at fair value.
Consolidated Investments Assets At Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Shares vested
Restricted stock awards, service conditions met
Restricted stock units and restricted stock awards, vested
Vested
Maximum
Maximum [Member]
Schedule of additional details of lease presented in balance sheet .
Schedule Of Additional Details Of Lease Presented In Balance Sheet Table [Text Block]
Schedule of Details of Leases Presented in Balance Sheet
Fair value of warrants issued
Fair Value Of Warrants Issued
Fair value of warrants issued.
Change in fair value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Debt Disclosure [Abstract]
Sale of Stock [Domain]
Restricted stock units and restricted stock awards, deferred
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Deferred
Share-based compensation arrangement by share-based payment award, equity instruments other than options, deferred.
Investment Income, Interest
Related Interest Income
Interest income
Effect of dilutive securities:
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Eric J. Scheyer.
Eric J Scheyer [Member]
Eric J Scheyer
Expire in Fiscal Years 2027 Through 2038
Expire in Fiscal Years Two Thousand Twenty Seven Through Two Thousand Thirty Eight [Member]
Expire in fiscal years two thousand twenty seven through two thousand thirty eight.
Weighted average shares outstanding basic and diluted other disclosure.
Weighted Average Shares Outstanding Basic and Diluted Other Disclosure [Abstract]
Weighted average shares outstanding
Construction in Progress
Construction in Progress [Member]
Lease income relating to lease payments
Operating Lease, Lease Income, Lease Payments
Amortization period of convertible notes debt discount and debt issuance costs.
Amortization Period Of Convertible Notes Debt Discount And Debt Issuance Costs
Amortization period of convertible notes debt discount and debt issuance costs
Consolidated Funds
Consolidated Fund.
Consolidated Fund [Member]
Consolidation, Policy [Policy Text Block]
Principles of Consolidation
Subsequent Events [Abstract]
Purchases from related party
Related Party Transaction, Purchases from Related Party
Recent Transaction
Valuation, Recent Transaction [Member]
Valuation, recent transaction member
Withholding tax payments related to restricted stock
Payment, Tax Withholding, Share-Based Payment Arrangement
Withholding tax payments related to restricted stock
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Investments, at fair value
Investments
Investments, Total
Percentage entitled of rent collected
Percentage Entitled Of Rent Collected
Percentage entitled of rent collected.
Current assets:
Assets, Current [Abstract]
Related Party Transaction [Domain]
Related Party Transaction
Summary of Intangible Assets
Intangible Asset, Finite-Lived, Acquired [Table Text Block]
Convertible notes (face value $36,838 and $36,838, including $17,853 and $17,853 held by related parties, respectively)
Convertible Debt, Noncurrent
Document Fiscal Year Focus
Document Fiscal Year Focus
Common Stock, Shares, Outstanding
Ending balance (in shares)
Beginning balance (in shares)
Common stock, shares outstanding
Carrying value of non-controlling interest prior to sale (permanent equity)
Equity, Including Portion Attributable to Noncontrolling Interest
Ending balance
Beginning balance
Total stockholders' equity
Minimum Percentage of Common Shares Outstanding Owned
Minimum percentage of common shares outstanding owned.
Minimum percentage of common shares outstanding owned
Earnings Multiple
Measurement Input, Revenue Multiple [Member]
Revenue from Contract with Customer [Policy Text Block]
Revenue
Related Party [Member]
Related Party
Property Management Fees
Property Management Fees [Member]
Property Management Fees [Member]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Operating Lease, Liability, Noncurrent
Lease liabilities, net of current portion
Increase (decrease) in accounts payable, accrued liabilities and other liabilities.
Increase Decrease In Accounts Payable Accrued Liabilities And Other Liabilities
Accounts payable, accrued expenses and other liabilities
Profit Interest Percentage
Profit Interest Percentage.
Profit interest percentage
Share Repurchase Program [Table]
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
Percentage of management fee rate.
Percentage Of Management Fee Rate
Percentage of management fee rates
Security Exchange Name
Security Exchange Name
Measurement Input Type [Axis]
Measurement Input Type
Related and Nonrelated Parties [Axis]
Related Party
Recently Adopted and Issued Accounting Standards
New Accounting Pronouncements, Policy [Policy Text Block]
Class of Warrant or Right, Exercise Price of Warrants or Rights
Warrants exercise price
Number of common stock shares issuable upon conversion of each thousand principal debt amount.
Number Of Common Stock Shares Issuable Upon Conversion Of Each Thousand Principal Debt Amount
Number of common stock shares issuable upon conversion of each $1000 principal debt amount
Entity Address, State or Province
Entity Address, State or Province
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Shares
Accounts Receivable, after Allowance for Credit Loss
Investment management revenues receivable
Investment management revenues receivable
Right-of-use assets
Right-of-use asset
Remaining right of use assets
Purchases of investments by consolidated fund.
Purchases Of Investments By Consolidated Fund
Purchase of investments
Amendment Flag
Amendment Flag
Lease liabilities and right of use assets arising from operating leases
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Share-Based Payment Arrangement [Text Block]
Share-Based and Other Non-Cash Compensation
Debt Instrument
Debt Instrument [Axis]
Managed investment products.
Managed Investment Products [Member]
Managed Investment Products
Liabilities of Consolidated Funds - Accrued expenses and other liabilities
Accrued Expenses And Other Consolidated Funds
Accrued expenses and other consolidated funds.
Cash, cash equivalents and restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Beginning Balance
Debt (face value $26,945)
Other Long-Term Debt, Noncurrent
Variable Interest Entity [Table]
City Area Code
City Area Code
Assembled Workforces
Assembled workforce.
Assembled Workforce [Member]
Assembled Workforce
Fair Value Measured at Net Asset Value Per Share [Member]
Fair Value Measured at Net Asset Value Per Share
Investment management agreement.
Investment Management Agreement [Member]
Investment Management Agreement
Investment Management Agreements
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Proceeds from Issuance of Common Stock
Proceeds from issuance of common stock
Licenses
License [Member]
Operating Expenses [Abstract]
Operating costs and expenses:
Promissory Note [Member]
Promissory Note
Promissory Note
GECC and other private funds managed by GECM (collectively, the “Funds”).
G E C C And Other Private Funds Managed By G E C M [Member]
Funds
Common Stock, Par or Stated Value Per Share
Common stock, par value
Fair Value Measurements.
Fair Value Measurements [Table]
Net Accretion
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Net Accretion
Fair value, measurement with unobservable inputs reconciliation, recurring basis, asset, net accretion.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term
Exercisable
Notes issued in minimum denominations
Notes Issued in Minimum Denominations
Notes issued in minimum denominations.
Liabilities, Current
Total current liabilities
Supplemental non-cash transactions:
Noncash Investing and Financing Items [Abstract]
Stock issued during period value vested immediately
Stock Issued During Period Value Vested Immediately
Stock issued during period value vested immediately.
Cash, cash equivalents and restricted cash at end of period
Cash, cash equivalents and restricted cash at beginning of period
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total
Variable lease cost
Variable Lease, Cost
Segment Reporting [Text Block]
Segment Reporting
shared services agreements.
Shared Services Agreements [Member]
Shared Services Agreements
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Changes in operating assets and liabilities of Consolidated Funds:
Increase (Decrease) In Operating Capital of Consolidated Funds [Abstract]
Increase (decrease) in operating capital of consolidated funds.
Trading Symbol
Trading Symbol
Geographical [Axis]
GEGGL Notes
GEGGL Notes [Member]
GEGGL notes.
Administration and service fees.
Administration and Service Fees [Member]
Administration and Service Fees
Subsequent Event [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Granted
Granted, shares
Entity Emerging Growth Company
Entity Emerging Growth Company
Additional Paid-in Capital [Member]
Additional Paid-in Capital
Total principal
Long-Term Debt, Gross
Other Liabilities, Noncurrent
Other liabilities
Other Liabilities, Noncurrent, Total
Employees
Employees [Member]
Employees.
Monomoy Properties REIT, LLC [Member]
Monomoy Properties REIT, LLC.
Monomoy Properties REIT, LLC
SGP
Summit Grove Partners LLC [Member]
Summit grove partners LLC.
Ranges of Significant Unobservable Inputs used to Value Level 3 Assets
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Equity, Attributable to Noncontrolling Interest
Equity, Attributable to Noncontrolling Interest, Ending Balance
Equity, Attributable to Noncontrolling Interest, Beginning Balance
Equity, Attributable to Noncontrolling Interest, Total
Redeemable non-controlling interest in Consolidated Funds
Administration and Service Fee Receivable
Administration and service fee receivable.
Administration and service fee receivable
Weighted-average remaining life
Operating Lease, Weighted Average Remaining Lease Term
Debt
Debt Securities, Trading
Debt securities
Revenue from Contract with Customer [Abstract]
Long-Term Debt, Type [Domain]
Long-term Debt, Type
Property, Plant, and Equipment, Useful Life
Real estate asset expected useful life
Intangible Asset, Finite-Lived, Amortization Expense
Amortization expense
Share-Based Payment Arrangement, Noncash Expense
Stock-based compensation
Share-based Payment Arrangement, Noncash Expense, Total
Additional Paid in Capital
Additional paid-in-capital
Additional Paid in Capital, Total
Additional Paid in Capital, Beginning Balance
Additional Paid in Capital, Ending Balance
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Adjustments to reconcile net loss to net cash flows from operating activities:
Customer-Related Intangible Assets [Member]
Customer related
Customer Related
Fair Value Disclosures [Abstract]
Cash and Cash Equivalent
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value, Total
Cash and Cash Equivalents, at Carrying Value, Beginning Balance
Cash and Cash Equivalents, at Carrying Value, Ending Balance
Project Management Fees
Project Management Fees [Member]
Project management fees.
Payments of Debt Issuance Costs
Debt issuance costs
Equity issuance costs
Equity issuance costs
Real Estate Rental Income [Member]
Real Estate Rental Income [Member]
Real Estate Rental Income
Change in net unrealized appreciation/depreciation included in earnings related to financial assets still held at the reporting date
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
Net cash flows from financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Summary of Estimated Aggregate Amortization Expense
Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block]
Schedule of Related Party Transactions [Table Text Block]
Schedule of Activity and Outstanding Balances Related Party and Company
Gain (Loss) on Sale of Real Estate
Gain (loss) on sale of real estate.
Gain on sale of real estate
Net (loss) income attributable to Great Elm Group, Inc.
Net Income (Loss) Available to Common Stockholders, Basic
Net loss attributable to Great Elm Group, Inc. stockholders
Net loss attributable to Great Elm Group, Inc. stockholders
Entity Filer Category
Entity Filer Category
Debt Instrument, Name [Domain]
Debt Instrument, Name
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Net realized and unrealized (gains) losses on investments
Net Realized and Unrealized Gains (Losses) on Investments from Consolidated Funds
Net realized and unrealized gains (losses) on investments from consolidated funds.
Net realized and unrealized loss on investments
Cost (Refund) of Revenue
Cost (refund) of revenue.
Cost of revenues
Boston, Massachusetts
Massachusetts
MASSACHUSETTS
Lease Contractual Term [Axis]
For the year ending June 30, 2028
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One
Adjustments to Additional Paid in Capital, Warrant Issued
Issuance of warrants
Value of warrants
Total product and services revenue
Revenues
Revenue from Contract with Customer, Excluding Assessed Tax
Durable medical equipment sales and services revenue
Redeemable Non-controlling Interest in Consolidated Funds [Member]
Redeemable Non-controlling Interest in Consolidated Funds.
Redeemable Non-controlling Interest in Consolidated Funds
Document Information [Line Items]
Segment Reporting [Abstract]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Statement of Financial Position [Abstract]
Local Phone Number
Local Phone Number