Document And Entity Information
Note To Financial Statement Details Textual
Statistical Measurement [Axis]
Significant Accounting Policies
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies
ecd_NonRule10b51ArrTrmntdFlag
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Note 3 - Inventories
ecd_NonRule10b51ArrAdoptedFlag
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Note 4 - Property and Equipment
guer_CommonStockVotingRightsVotePerShare
Common Stock, Voting Rights, Vote Per Share
The number of votes per share of holders of common stock.
Trading Arrangements, by Individual [Table]
Note 5 - Debt
Retirement Benefits [Text Block]
Material Terms of Trading Arrangement [Text Block]
Note 6 - Common Stock and Preferred Stock
Note 7 - Share-based Compensation
Note 8 - Fair Value Measurement
Note 9 - Commitments and Contingencies
Note 10 - Segment Information
Minimum [Member]
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies - Major Customers (Details)
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded From Computation of Earnings Per Share (Details)
Statistical Measurement [Domain]
Note 3 - Inventories - Summary of Inventories (Details)
Maximum [Member]
Note 4 - Property and Equipment - Summary of Property and Equipment (Details)
Note 5 - Debt - Long-term Debt Expected to Mature (Details)
Note 6 - Common Stock and Preferred Stock - Information Related to Stock Warrants (Details)
Note 7 - Share-based Compensation - Weighted-average Assumptions (Details)
Note 7 - Share-based Compensation - Stock Option Activity (Details)
us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts receivable
Note 7 - Share-based Compensation - Schedule of Restricted Stock Units (Details)
us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
Accounts payable and accrued expenses
Note 7 - Share-based Compensation - Stock-based Compensation Expense (Details)
Note 7 - Share-based Compensation - Stock-based Compensation Expense 2 (Details)
Note 8 - Fair Value Measurement - Fair Value Measurement Inputs and Valuation Techniques (Details)
Note 8 - Fair Value Measurement - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details)
Note 9 - Commitments and Contingencies - Balance Sheet Information Related to Right-of-use Assets and Liabilities (Details)
Note 9 - Commitments and Contingencies - Lease Cost (Details)
Note 9 - Commitments and Contingencies - Other Supplemental Information Related to Leases (Details)
Basis of Presentation and Significant Accounting Policies [Text Block]
Note 9 - Commitments and Contingencies - Future Minimum Payments (Details)
Note 10 - Segment Information - Segment Information (Details)
Direct materials
Issued, number of warrants (in shares)
The number of warrants or rights issued during period.
Notes To Financial Statements
Notes To Financial Statements [Abstract]
Operating lease liabilities
guer_OperatingLeaseLiabilityYearThree
Present value of lessee's discounted obligation for lease payments for year three from operating lease.
Series A convertible preferred stock, $0.0001 par value, 22,000 shares authorized, issued and outstanding as of June 30, 2026 and December 31, 2025
us-gaap_EffectiveIncomeTaxRateContinuingOperations
Effective Income Tax Rate Reconciliation, Percent
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountYearThree
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year three for operating lease.
us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
Forfeited, weighted average exercise price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice
Expired (in dollars per share)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Exercised, weighted average exercise price (in dollars per share)
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountYearFour
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease year four.
Operating lease liabilities
guer_OperatingLeaseLiabilityYearFour
Present value of lessee's discounted obligation for lease payments from operating lease year four.
Lease, Liability, Fiscal Year Maturity [Table Text Block]
Tabular disclosure of undiscounted cash flows of lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to lease liability recognized in statement of financial position.
Legal Claims [Member]
Represents legal claims.
Employees [Member]
Represents employees.
Leasehold Improvements [Member]
us-gaap_IncreaseDecreaseInInventories
Inventories
The 2014 Long Term Stock Incentive Plan [Member]
Represent the 2014 Long Term Stock Incentive Plan.
Segment Reporting [Text Block]
Award Type [Axis]
Segment Reporting [Table Text Block]
Undesignated preferred stock, $0.0001 par value, 9,978,000 shares authorized, no shares issued and outstanding as of June 30, 2026 and December 31, 2025
Preferred Stock, Value, Issued
Adjustment to reconcile net loss to net cash provided by (used in) operating activities
guer_ContractWithCustomerLiabilityRevenueToBeRecognized
Contract with Customer, Liability, Revenue To Be Recognized
Represents revenue to be recognized for contract with customer.
Plan Name [Axis]
us-gaap_Liabilities
Total Liabilities
Plan Name [Domain]
Defined Benefit Plan [Table]
Issued, weighted average exercise price (in dollars per share)
Exercise price per share of warrants or rights issued during period.
us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
Share-Based Payment Arrangement, Amount Capitalized
Salem Loan Facility [Member]
Represents the Salem loan facility.
us-gaap_LiabilitiesAndStockholdersEquity
Total Liabilities, Convertible Preferred Stock and Stockholders' Deficit
Stock-based compensation expense
Consolidation Items [Axis]
Assets and Liabilities, Lessee [Table Text Block]
Tabular disclosure of lessee's assets and liabilities.
Title and Position [Axis]
Segment Reporting [Table]
us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Prepaid expenses and other assets
Sales and marketing
Sales and marketing
us-gaap_ShareBasedCompensation
Share-based compensation
us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
Share-Based Payment Arrangement, Expense, Tax Benefit
Liabilities, Convertible Preferred Stock and Stockholders' Deficit
Consolidation Items [Domain]
Lessee, Lease, Description [Table]
Share-Based Payment Arrangement [Text Block]
Location, Statement of Income, Balance [Axis]
Changes in assets and liabilities:
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued (in shares)
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding (in shares)
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized (in shares)
Less interest
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for remainder of fiscal year for finance lease.
Less interest
guer_FinanceLeaseLiabilityUndiscountedExcessAmountNextTwelveMonths
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for next twelve months for finance lease.
Customer A [Member]
Customer A
Less interest
guer_FinanceLeaseLiabilityUndiscountedExcessAmountYearTwo
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year two for finance lease.
Schedule of Major Customers [Table Text Block]
Tabular disclosure of major customers.
Less interest
guer_FinanceLeaseLiabilityUndiscountedExcessAmountYearThree
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year three for finance lease.
Fair Value, by Balance Sheet Grouping [Table]
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share (in dollars per share)
guer_FinanceLeaseCost
Total finance lease costs
Amount of finance lease cost recognized by lessee for lease contract.
us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Beginning balance as of January 1, 2026
Ending balance on June 30, 2026
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
Net increase (decrease) in cash
Finance lease liabilities
guer_FinanceLeaseLiabilityYearTwo
Present value of lessee's discounted obligation for lease payments for year two from finance lease.
Finance lease liabilities
guer_FinanceLeaseLiabilityYearThree
Present value of lessee's discounted obligation for lease payments for year three from finance lease.
Finance lease liabilities
guer_FinanceLeaseLiabilityYearFour
Present value of lessee's discounted obligation for lease payments year four from finance lease.
Less interest
guer_FinanceLeaseLiabilityUndiscountedExcessAmountYearFour
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year four for finance lease.
Customer D [Member]
Customer D
Finance lease liabilities
guer_FinanceLeaseLiabilityRemainderOfFiscalYear
Present value of lessee's discounted obligation for lease payments for remainder of fiscal year from finance lease.
Customer B [Member]
Customer B
Finance lease liabilities
guer_FinanceLeaseLiabilityYearOne
Present value of lessee's discounted obligation for lease payments for year one from finance lease.
Customer C [Member]
Customer C
Short-term debt
Amount of debt having initial terms less than one year or the normal operating cycle, if longer and long-term debt, classified as current. Excludes capital lease obligations.
Operating lease liabilities
guer_OperatingLeaseLiabilityYearOne
Present value of lessee's discounted obligation for lease payments for year one from operating lease.
Operating lease liabilities
guer_OperatingLeaseLiabilityYearTwo
Present value of lessee's discounted obligation for lease payments for year two from operating lease.
Other Supplemental Lease Information [Table Text Block]
Tabular disclosure for other supplemental lease information.
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountRemainderOfFiscalYear
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for remainder of fiscal year for operating lease.
New Accounting Pronouncements, Policy [Policy Text Block]
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountYearOne
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year one for operating lease.
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
Cash, beginning of period
Cash, end of period
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountYearTwo
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for year two for operating lease.
Operating lease liabilities
guer_OperatingLeaseLiabilityRemainderOfFiscalYear
Present value of lessee's discounted obligation for lease payments for remainder of fiscal year from operating lease.
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Antidilutive Securities, Name [Domain]
Statement [Table]
Reclassification, Comparability Adjustment [Policy Text Block]
Credit Facility [Axis]
us-gaap_OperatingLeasePayments
Operating cash flows from operating leases
Operating leases
guer_LesseeOperatingLeaseLiabilityToBePaidThereafter
Amount of lessee's undiscounted obligation for lease payment for operating lease due after listed fiscal years. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Credit Facility [Domain]
us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Debt Instrument, Basis Spread on Variable Rate
Finance lease liabilities
guer_FinanceLeaseLiabilityThereafter
Present value of lessee's discounted obligation for lease payments thereafter listed fiscal years from finance lease.
Finance leases
guer_FinanceLeaseLiabilityToBePaidThereafter
Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after listed fiscal years. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Less interest
guer_FinanceLeaseLiabilityUndiscountedExcessAmountThereafter
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments after listed fiscal years for finance lease.
Less present value adjustment
guer_LesseeOperatingLeaseLiabilityUndiscountedExcessAmountThereafter
Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease after listed years.
us-gaap_FinanceLeasePrincipalPayments
Principal payments on finance lease
Financing cash flows from finance leases
Operating lease liabilities
guer_OperatingLeaseLiabilityThereafter
Present value of lessee's discounted obligation for lease payments from operating lease after listed fiscal years.
us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Line of Credit Facility, Maximum Borrowing Capacity
us-gaap_DerivativeLiabilities
Derivative Liability
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Outstanding, shares (in shares)
Outstanding, shares (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Outstanding, weighted average fair value (in dollars per share)
Outstanding, weighted average fair value (in dollars per share)
Nature of Operations [Text Block]
Granted (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Granted, weighted average fair value (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Cancelled/forfeited (in shares)
Product and Service [Domain]
Product and Service [Axis]
us-gaap_LineOfCredit
Long-Term Line of Credit
Ownership [Axis]
Ownership [Domain]
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear
2026
Vested, weighted average fair value (in dollars per share)
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Vested (in shares)
us-gaap_RepaymentsOfDebt
Repayments of long- and short-term debt
Property, plant, and equipment, net
Operating leases, total
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent
Finance leases
us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Operating leases
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
Cancelled/forfeited (in shares)
Operating leases
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
Expired (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)
Schedule of Maturities of Long-Term Debt [Table Text Block]
Exercisable options (in shares)
Operating leases
us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap_PreferredStockRedemptionAmount
Preferred Stock, Redemption Amount
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Exercisable options, weighted average exercise price (in dollars per share)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Shares underlying outstanding awards (in shares)
Shares underlying outstanding awards (in shares)
Assets
Operating leases
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree
Commitments and Contingencies Disclosure [Text Block]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Shares underlying outstanding awards, weighted average exercise price (in dollars per share)
Shares underlying outstanding awards at June 30, 2026 (in dollars per share)
Operating leases
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
Statement [Line Items]
Liability Class [Axis]
Shares underlying outstanding awards, intrinsic value
Operating leases
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour
Common stock, issued (in shares)
Grantee Status [Domain]
Common stock, outstanding (in shares)
Award Type [Domain]
Share-Based Payment Arrangement, Employee [Member]
Risk-free rate
Common stock, authorized (in shares)
Common Stock, Shares Authorized (in shares)
Grantee Status [Axis]
Expected volatility
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Common stock, $0.0001 par value, 50,000,000 shares authorized, 10,698,139 and 10,595,638 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively
us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Proceeds from Issuance or Sale of Equity
Amortization of lease assets
Schedule of Inventory, Current [Table Text Block]
Exercise Price, Outstanding (in dollars per share)
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)
Outstanding, weighted average exercise price (in dollars per share)
Outstanding, weighted average exercise price (in dollars per share)
Accounts payable and accrued expenses
Finance lease liabilities, total
us-gaap_FinanceLeaseLiability
Total finance lease liabilities
Common Stock Warrants [Member]
Represents Common stock warrants.
us-gaap_PolicyTextBlockAbstract
Accounting Policies
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
us-gaap_TableTextBlock
Notes Tables
Finance lease liability, noncurrent
Noncurrent portion of finance lease liabilities
Finance leases, total
us-gaap_FinanceLeaseLiabilityPaymentsDue
Finance lease liability, current portion
Current portion of finance lease liabilities
The 2021 Plan [Member]
Represents the 2021 plan.
Less interest, total
us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount
Finance leases
us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree
Finance leases
us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo
Subsequent Events [Text Block]
Finance leases
us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour
Concentration Risk Type [Axis]
Finance leases
us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
Interest on lease liabilities
us-gaap_FinanceLeaseInterestPaymentOnLiability
Operating cash flows from finance leases
Finance leases
us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear
Amortization of operating lease ROU assets
Less present value adjustment, total
us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
Shares underlying outstanding awards, weighted average remaining contractual term (Year)
Operating lease liability, noncurrent
Noncurrent portion of operating lease liabilities
Operating lease liabilities, total
us-gaap_OperatingLeaseLiability
Total operating lease liabilities
Operating lease liability, current portion
Current portion of operating lease liabilities
Accounts Receivable [Member]
Expected term (in years) (Year)
Exercisable options, weighted average remaining contractual term (Year)
Concentration Risk Type [Domain]
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
Long-Term Debt, Maturity, Year Two
us-gaap_ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
Contract with Customer, Performance Obligation Satisfied in Previous Period
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
Long-Term Debt, Maturity, Year Four
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
Long-Term Debt, Maturity, Year Three
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
Long-Term Debt, Maturity, Year One
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
us-gaap_PaymentsOfFinancingCosts
Payments of Financing Costs
us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Change in fair value of warrant liabilities
us-gaap_LossContingencyAccrualAtCarryingValue
Loss Contingency Accrual
Statement of Stockholders' Equity [Abstract]
Loss Contingency Nature [Axis]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Domain]
Statement of Cash Flows [Abstract]
Proceeds from notes payable and recourse factoring agreement
Stockholders' Deficit
Equity Components [Axis]
us-gaap_IncreaseDecreaseInOperatingLeaseLiability
Operating lease liability
us-gaap_PaymentsOfStockIssuanceCosts
Payments of Stock Issuance Costs
Share-Based Payment Arrangement [Policy Text Block]
Proceeds from exercise of stock options
Equity Component [Domain]
us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)
Equity [Text Block]
Additional Paid-in Capital [Member]
Warrants, Outstanding (in shares)
Outstanding, number of warrants (in shares)
Outstanding, number of warrants (in shares)
Retained Earnings [Member]
Direct product costs
Loss Contingency, Nature [Domain]
us-gaap_PropertyPlantAndEquipmentNet
Property and equipment, net
Property and equipment, gross
Property and equipment additions included in accounts payable
Subsequent Event [Table]
Modifications of finance leases
Amount of modification on operating and finance leases.
Other direct product costs (a)
Furniture and Fixtures [Member]
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Single Reportable Segment [Member]
Single Reportable Segment
guer_ProceedsFromRefundOfOfferingCosts
Refund of unused offering cost
Represents the cash inflow from refund of offering costs.
Share-Based Payment Arrangement, Option [Member]
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Measurement input
Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.
Supplemental disclosure of cash flow information:
us-gaap_LiabilitiesCurrent
Total Current Liabilities
Temporary equity, shares issued (in shares)
Temporary equity, shares outstanding (in shares)
Temporary equity, shares authorized (in shares)
Accounts receivable, net
Customer Concentration Risk [Member]
Lease, Cost [Table Text Block]
Revenue Benchmark [Member]
Other Commitments [Table]
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Less accumulated depreciation
us-gaap_PreferredStockConvertibleSharesIssuable
Preferred Stock, Convertible, Shares Issuable (in shares)
Refund of unused offering cost
Represents the adjustment to additional paid in capital from refund of unused offering costs.
General and administrative
Net Income (Loss) Before Income Taxes
Additional paid-in capital
guer_DebtInstrumentModificationFee
Debt Instrument, Modification Fee
Represents the modification fee on a debt instrument.
Debt Disclosure [Text Block]
Prepaid expenses and other assets, noncurrent
guer_DebtInstrumentModificationFeePercentage
Debt Instrument, Modification Fee, Percentage
Represents the percentage of fee from modification of a debt instrument.
Use of Estimates, Policy [Policy Text Block]
Prepaid expenses and other assets, current
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Purchases of property, plant, and equipment
us-gaap_DebtInstrumentCarryingAmount
Long-Term Debt, Gross
us-gaap_MinorityInterestOwnershipPercentageByParent
Subsidiary, Ownership Percentage, Parent
Stock options exercised
us-gaap_AssetsCurrent
Total Current Assets
Fair Value, Recurring and Nonrecurring [Table]
Gross Profit
Gross Profit
Restricted Stock Units (RSUs) [Member]
Debt Instrument, Name [Domain]
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Exercised (in shares)
us-gaap_DebtInstrumentInterestRateStatedPercentage
Debt Instrument, Interest Rate, Stated Percentage
us-gaap_Depreciation
Depreciation
Class of Stock [Domain]
us-gaap_DebtInstrumentUnamortizedDiscount
Debt Instrument, Unamortized Discount
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Axis]
Temporary equity, par value (in dollars per share)
Cash flows from operating activities
Cash flows from investing activities
us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net cash provided by (used in) operating activities
Raw materials
Cash flows from financing activities
Work-in-process
us-gaap_NetCashProvidedByUsedInInvestingActivities
Net cash used in investing activities
us-gaap_NetCashProvidedByUsedInFinancingActivities
Net cash provided by (used in) financing activities
Finished goods
Stockholders' Equity, Policy [Policy Text Block]
guer_PreferredStockStatedValue
Preferred Stock, Stated Value
Represents the stated value of preferred stock.
guer_PercentOfConversionSharesOwned
Percent of Conversion Shares Owned
The percent of conversion shares owned.
Going Concern [Policy Text Block]
The disclosure of the company's policy regarding going concern.
Interest income
Amount of interest income classified as nonoperating.
guer_PercentOfCommonStockIssuable
Percent of Common Stock Issuable
The percent of common stock issuable.
guer_ProceedsFromIssuanceOrSaleOfEquityGross
Proceeds from Issuance or Sale of Equity, Gross
The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity before issuance costs.
guer_BorrowedMoney
Borrowed Money
The amount of money borrowed.
Operating Segments [Member]
Accounting Policies [Abstract]
Series A Convertible Preferred Stock [Member]
Relating to Series A Convertible Preferred Stock.
North Run Warrants [Member]
Relating to North Run Warrants.
guer_PercentOfVotingStock
Percent of Voting Stock
The percent of voting stock.
Segments [Domain]
guer_PercentOfOutstandingCommonShares
Percent of Outstanding Common Shares
The percent of outstanding common shares.
Accounts Receivable [Policy Text Block]
Segments [Axis]
Measurement Input Type [Axis]
Warrants Liability [Member]
The warrant liabilities.
Income Statement [Abstract]
us-gaap_NumberOfOperatingSegments
Number of Operating Segments
us-gaap_NumberOfReportableSegments
Number of Reportable Segments
Measurement Input, Expected Term [Member]
guer_StockIssuedDuringPeriodValueRestrictedStockAwardSettlement
Net settled RSUs
Represents the settlement of restricted stock awards.
Change in fair value of warrant liabilities
Change in fair value of warrant liabilities
Net income
Net Income (Loss) Attributable to Parent
Net Loss
Measurement Input, Price Volatility [Member]
us-gaap_DebtLongtermAndShorttermCombinedAmount
Debt, Long-Term and Short-Term, Combined Amount
Measurement Input Type [Domain]
Measurement Input, Risk Free Interest Rate [Member]
Income Tax Disclosure [Text Block]
Accounting Standards Update and Change in Accounting Principle [Table]
Noncash investing and financing transactions:
Emerging Growth Company [Policy Text Block]
The accounting policy disclosure for emerging growth company.
Related Party Transaction [Table]
Related Party Transactions Disclosure [Text Block]
guer_PolicyTable
Other Income (Expenses):
Statement of Financial Position [Abstract]
Total Other Income (Expense), net
Total Other Income (Expenses), net
Income taxes
us-gaap_DividendsCommonStock
Dividends, Common Stock, Total
Undesignated Preferred Stock [Member]
Represents undesignated preferred stock.
us-gaap_RepaymentsOfShortTermDebt
Principal payments of notes payable and recourse factoring agreement
us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1
Finance leases (Year)
Spectrum Loan Facility [Member]
Represents the Spectrum Loan Facility.
us-gaap_IncreaseDecreaseInDeferredRevenue
Deferred revenue
us-gaap_WarrantsAndRightsOutstanding
Warrants and Rights Outstanding
Document Type
Operating Expenses:
Document Information [Line Items]
Document Quarterly Report
us-gaap_DefinedContributionPlanCostRecognized
Defined Contribution Plan, Cost
Concentration risk
us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
Operating leases (Year)
Document Information [Table]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)
Royalty and Non-recurring Engineering [Member]
Represents royalty and non-recurring engineering.
Antidilutive Securities [Axis]
Nonvested Restricted Stock Shares Activity [Table Text Block]
Entity Interactive Data Current
Document Transition Report
Long-term debt
Amount, excluding unamortized premium (discount) and debt issuance cost, and long-term notes payable.
Total Operating Expenses
Total Operating Expenses
Software financed through short-term debt
Amount of financing of insurance premium and software in noncash investing or financing activities.
Weighted Average Common Shares Outstanding - Basic and Diluted (in shares)
guer_AnnualFacilityFees
Annual Facility Fees
Amount of annual facility fee.
Derivative Instrument [Axis]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Net Loss Per Share - Basic and Diluted (in dollars per share)
guer_ProceedsFromAccountsReceivableFactoring
Proceeds from Accounts Receivable Factoring
The amount of accounts receivable secured debt facility.
Indemnification Agreement [Member]
guer_AccountsReceivableSecuredDebtFacilityReceivablesAssigned
Accounts Receivable Secured Debt Facility, Receivables Assigned
The value of receivables assigned under accounts receivable secured debt facility.
guer_AccountsReceivableSecuredDebtFacilityAmountDue
Accounts Receivable Secured Debt Facility, Amount Due
The amount due under accounts receivable secured debt facility.
Notes payable - related party, current portion
Notes Payable, Current
Notes payable - related party, noncurrent
Notes Payable, Noncurrent
Effective Income Tax Rate Reconciliation [Table]
Title and Position [Domain]
Earnings Per Share, Policy [Policy Text Block]
Exercisable, number of warrants (in shares)
Number of warrants or rights exercisable.
Intangible assets, net
Exercised, weighted average exercise price (in dollars per share)
Exercise price per share of warrants or rights exercised during period.
Non-cash amortization of debt discount
Amortization of Debt Discount (Premium)
Exercised, number of warrants (in shares)
The number of warrants or rights exercised during period.
Canceled, number of warrants (in shares)
The number of warrants or rights cancelled during period.
Expired, number of warrants (in shares)
The number of warrants or rights expired during period.
Document Fiscal Period Focus
Share-based compensation
Share-based compensation
Customer [Domain]
Document Fiscal Year Focus
Canceled, weighted average exercise price (in dollars per share)
Exercise price per share of warrants or rights cancelled during period
Expired, weighted average exercise price (in dollars per share)
Exercise price per share of warrants or rights expired during period.
Amendment Flag
Outstanding, weighted average remaining life (Year)
Weighted average remaining life of outstanding warrants or rights.
Salem Investment Partners V, LP [Member]
Represents Salem Investment Partners V, Limited Partnership.
Exercisable, weighted average exercise price (in dollars per share)
Exercise price per share of warrants or rights exercisable.
Common Stock [Member]
Exercisable, intrinsic value
Intrinsic value of warrants or rights exercisable.
Exercisable, weighted average remaining life (Year)
Weighted average remaining life of warrants or rights exercisable.
Document Period End Date
Outstanding, intrinsic value
Intrinsic value of warrants or rights outstanding.
Property, Plant, and Equipment [Text Block]
Long-Lived Asset, Class [Domain]
Granted (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)
Legal Entity [Axis]
Operating lease cost
guer_DebtInstrumentBaseFloor
Debt Instrument, Base Floor
Minimum base interest rate for debt instrument.
Construction in Progress [Member]
Entity File Number
Entity Tax Identification Number
Entity [Domain]
Entity Central Index Key
Entity Registrant Name
Entity Current Reporting Status
Entity Incorporation, State or Country Code
Current Fiscal Year End Date
Entity Ex Transition Period
Fair Value Measurement, Policy [Policy Text Block]
Research and development
Entity Filer Category
Entity Shell Company
Entity Emerging Growth Company
Entity Small Business
guer_PercentOfPurchasedAccountsReceivableOutstanding
Percent of Purchased Accounts Receivable Outstanding
The percentage of purchased accounts receivable outstanding.
Segment Operating Income (Loss)
Operating Income (Loss)
guer_MonthlyReductionOfMaximumFundsAvailableToPurchaseEligibleEquipmentPercentage
Monthly Reduction of Maximum Funds Available to Purchase Eligible Equipment, Percentage
The monthly reduction of maximum funds available to be borrowed to purchase eligible equipment.
guer_AdditionalAmountAllowedToBeBorrowed
Additional Amount Allowed to be Borrowed
The additional amount allowed to be borrowed.
Cash
Cash
guer_PercentCostOfEligibleEquipment
Percent, Cost of Eligible Equipment
The percentage of the costs of eligible equipment.
guer_PercentNetAmountOfEligibleInventory
Percent, Net Amount of Eligible Inventory
The percentage of net amount of eligible inventory.
guer_PercentOfEligibleAccountsReceivable
Percent of Eligible Accounts Receivable
The percentage of eligible accounts receivable.
Derivative Instruments and Hedging Activities Disclosure [Text Block]
us-gaap_InterestExpenseDebt
Interest Expense, Debt
Entity Address, State or Province
Inventory, Current [Table]
Entity Address, City or Town
us-gaap_InterestExpenseNonoperating
Interest expense
Accumulated deficit
Entity Address, Address Line One
City Area Code
Local Phone Number
Entity Address, Postal Zip Code
Preferred Stock [Member]
Class of Stock [Axis]
Revenue [Policy Text Block]
Entity Common Stock, Shares Outstanding
Board of Directors Chairman [Member]
Warrants With Exercise Price 350 [Member]
Represents warrants with an exercise price of $3.50.
Warrants With Exercise Price 250 [Member]
Represents warrants with an exercise price of $2.50.
Warrants With Exercise Price 780 [Member]
Represents warrants with an exercise price of $7.80.
Warrants With Exercise Price 1200 [Member]
Represents warrants with an exercise price of $12.00.
Exercisable options, intrinsic value
Property, Plant, and Equipment [Table]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share (in dollars per share)
Warrant liabilities
Amount of warrant liabilities maturing within one year or the normal operating cycle, if longer.
Derivative Contract [Domain]
Other income (expense)
Long-Lived Asset, Class [Axis]
us-gaap_Assets
Total Assets
us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Common Stock, Capital Shares Reserved for Future Issuance (in shares)
us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
us-gaap_ContractWithCustomerLiability
Contract with Customer, Liability
Customer [Axis]
Historical Warrants [Member]
Represents information pertaining to the "historical warrants".
Depreciation and amortization
Debt, Policy [Policy Text Block]
Consolidation, Policy [Policy Text Block]
Fair Value by Liability Class [Domain]
Interest
Inventory Disclosure [Text Block]
Product [Member]
Inventories
Inventories
Production Assets [Member]
Represents production assets.
Computer Equipment and Software [Member]
Represents computer equipment and software.
Lab Equipment [Member]
Represents lab equipment.
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
us-gaap_StockholdersEquity
Total Stockholders' Deficit
Balance
Balance
Cancelled/forfeited, weighted average fair value (in dollars per share)
Stock, Class of Stock [Table]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Warrant Liabilities [Member]
Represents information pertaining to warrant liabilities.
us-gaap_FinanceLeaseRightOfUseAsset
Finance lease right-of-use assets
Operating lease right-of-use assets
Operating lease right-of-use assets
ecd_Rule10b51ArrTrmntdFlag
Rule 10b5-1 Arrangement Terminated [Flag]
Property, Plant, and Equipment [Table Text Block]
ecd_Rule10b51ArrAdoptedFlag
Rule 10b5-1 Arrangement Adopted [Flag]
Revenue
Commitments and Contingencies