Cover [Abstract]
Entity Registrant Name
Entity Central Index Key
Document Type
Amendment Flag
Entity Voluntary Filers
Current Fiscal Year End Date
Entity Well Known Seasoned Issuer
Entity Small Business
Entity Shell Company
Entity Emerging Growth Company
Entity Current Reporting Status
Document Period End Date
Entity Filer Category
Document Fiscal Period Focus
Document Fiscal Year Focus
Entity Common Stock Shares Outstanding
Entity Public Float
Document Annual Report
Document Transition Report
Document Fin Stmt Error Correction Flag
Entity File Number
Entity Incorporation State Country Code
Entity Tax Identification Number
Entity Address Address Line 1
Entity Address Address Line 2
Entity Address City Or Town
Entity Address State Or Province
Entity Address Postal Zip Code
City Area Code
Icfr Auditor Attestation Flag
Local Phone Number
Security 12b Title
Trading Symbol
Security Exchange Name
Entity Interactive Data Current
Auditor Firm Id
Auditor Name
Auditor Location
Consolidated Balance Sheets
Assets
Current Assets:
Cash and cash equivalents
Accounts receivable, net of credit allowance
Other accounts receivable
Unbilled accounts receivable
Inventory, net
Contract assets
Prepaid expenses
Total Current Assets
[Assets, Current]
Property and equipment, net
Intangible asset, net
Right-of-use asset, net
Other assets
Total Long-Term Assets
[Assets, Noncurrent]
Total Assets
[Assets]
Liabilities and Stockholders' Equity
Current Liabilities:
Accounts payable and accrued expenses
Accrued bonuses
Accrued contract loss provision
Accrued legal settlement
Unearned revenue
Note payable
Secured promissory note
Financing liability
Operating lease liabilities
Other liabilities
Total Current Liabilities
[Liabilities, Current]
Unearned revenue, less current portion
Note payable, less current portion
Operating lease liabilities, less current portion
Total Long-term Liabilities
[Liabilities, Noncurrent]
Total Liabilities
[Liabilities]
Stockholders' Equity
Preferred Stock: 50,000,000; 1,000,000 Designated as Convertible Series D preferred shares authorized; par value $0.0001 per share, nil issued and outstanding at December 31, 2025 and 2024, respectively.
Common stock: 1,000,000,000 common shares authorized, par value $0.0001 per share, 17,143,771 and 14,130,198 shares outstanding at December 31, 2025 and 2024, respectively
Additional paid-in capital
Accumulated deficit
Accumulated other income
Total Stockholders' Equity
[Equity, Attributable to Parent]
Total Liabilities & Stockholders' Equity
[Liabilities and Equity]
Common stock, shares authorized
Common stock, par value
Common stock, shares issued
Common stock, shares outstanding
Preferred stock, shares designated
Preferred stock, shares authorized
Preferred stock, par value
Preferred stock, shares issued
Preferred stock, shares outstanding
Consolidated Statements of Operations
Revenues
Cost of revenues
[Cost of Revenue]
Gross Margin
[Gross Profit]
Operating Expenses
Research and development
[Research and Development Expense]
Compensation and related expenses
[Labor and Related Expense]
Professional fees
General and administrative
Total Operating Expenses
[Operating Expenses]
Loss from Operations
[Operating Income (Loss)]
Other Income (Expenses)
Interest income
Interest expense
[Interest Expense, Other]
Other income
Total Other Income, net
[Other Nonoperating Income (Expense)]
Net Loss before Income Taxes
[Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest]
Provision for Income Taxes
Net Loss
[Net Income (Loss) Attributable to Parent]
Net Loss per Share - Basic and Diluted
Weighted Average Common Shares Outstanding - Basic and Diluted
Consolidated Changes in Stockholders Equity
Statement [Table]
Statement [Line Items]
Equity Components [Axis]
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Other Comprehensive Income
Balance, shares
[Shares, Issued]
Balance, amount
Issuance of shares of common stock for services - employees and directors, shares
Issuance of shares of common stock for services - employees and directors, amount
Accretion of stock-based compensation - options
Accretion of stock-based compensation - restricted stock
Stock options issued for legal settlement
Stock option exercises - cashless and cash, shares
Stock option exercises - cashless and cash, amount
Issuance of shares of common stock for cash in ATM , net of issuance costs, shares
Issuance of shares of common stock for cash in ATM , net of issuance costs, amount
Issuance of shares of common stock for cash in offering , net of issuance costs, shares
Issuance of shares of common stock for cash in offering , net of issuance costs, amount
Net loss
Issuance of restricted common stock to executives, shares
Issuance of restricted common stock to executives, amount
Issuance of shares of common stock for payment of accrued expense, shares
Issuance of shares of common stock for payment of accrued expense, amount
Deemed dividend from warrant modification
Warrant repurchase
Balance, shares
Balance, amount
Consolidated Statements of Cash Flows
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss
[Net Income (Loss), Including Portion Attributable to Noncontrolling Interest]
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization
Non-cash lease expense
Issuance of common stock for services
Stock-based compensation
Gain on legal settlement
[Litigation Settlement, Gain]
Accrued interest added to secured promissory note
Inventory reserve
Changes in operating assets and liabilities:
Accounts receivable
[Increase (Decrease) in Accounts Receivable]
Other accounts receivable
[Increase (Decrease) in Other Receivables]
Unbilled accounts receivable
[Increase (Decrease) in Unbilled Receivables]
Inventory
[Increase (Decrease) in Inventories]
Contract assets
[Increase (Decrease) in Contract with Customer, Asset]
Prepaid expenses
[Increase (Decrease) in Prepaid Expense]
Other assets
[Increase (Decrease) in Other Operating Assets]
Accounts payable and accrued expenses
[Increase (Decrease) in Accounts Payable and Accrued Liabilities]
Accrued bonuses
[Increase (Decrease) in Accrued Liabilities]
Accrued contract loss provision
[Accrued contract loss provision]
Accrued legal settlement
[Accrued legal settlement]
Unearned Revenue
Other Liabilities
Operating lease liability
Net cash used in Operating activities
[Cash Provided by (Used in) Operating Activity, Including Discontinued Operation]
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment
[Payments to Acquire Property, Plant, and Equipment]
Increase in intangible assets
[Payments to Acquire Intangible Assets]
Net cash used in investing activities
[Cash Provided by (Used in) Investing Activity, Including Discontinued Operation]
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments on note payable
[Repayments of Notes Payable]
Repayments on financing liability
[Payments of Financing Costs]
Proceeds from secured promissory note
Proceeds from the exercise of options
Gross proceeds from the issuance of common stock
Issuance costs related to sales of common stock
[Payments of Stock Issuance Costs]
Warrant repurchase
Net cash provided by financing activities
[Cash Provided by (Used in) Financing Activity, Including Discontinued Operation]
Net (decrease) increase in cash
[Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation]
Cash and cash equivalents, beginning of year
Cash and cash equivalents, end of year
Supplemental cash flow disclosures
Cash paid for interest
Cash paid for taxes
Supplemental disclosure operating, investing and financing activities
Cashless stock option exercises
Equipment purchase in accounts payable
Initial right-of-use asset and liability
Reclassification of inventory to property and equipment
Issuance of restricted common stock
Equipment financed with a note payable
Accrued expense settled with shares of common stock
Prepaid insurance financed
Deemed dividend on warrant modification
Insider Trading Arrangements [Line Items]
Rule 10b5-1 Arrangement Adopted [Flag]
Rule 10b5-1 Arrangement Terminated [Flag]
Non Rule 10b5-1 Arrangement Adopted [Flag]
Non Rule 10b5-1 Arrangement Terminated [Flag]
Nature of Business and Presentation of Consolidated Financial Statements
Nature of Business and Presentation of Consolidated Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Liquidity Capital Resources and Going Concern
Liquidity, Capital Resources and Going Concern
Inventory
Inventory
Inventory Disclosure [Text Block]
Intangible Assets
Intangible Assets
Intangible Assets Disclosure [Text Block]
Revenue, Unearned Revenue and Unbilled Accounts Receivable
Revenue, Unearned Revenue and Unbilled Accounts Receivable
[Revenue, Unearned Revenue and Unbilled Accounts Receivable]
Debt Obligations
Debt Obligations
Debt Disclosure [Text Block]
Stockholder Equity
Stockholder' Equity
Related Party Transactions
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Commitments and Contingencies
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Income Taxes
Income Taxes
Income Tax Disclosure [Text Block]
Segment Reporting
Segment Reporting
Segment Reporting Disclosure [Text Block]
Subsequent Events
Subsequent Events
Subsequent Events [Text Block]
Presentation of Consolidated Financial Statements and Principles of Consolidation
Use Of Estimates
Cash and Cash Equivalents
Fair Value Measurements
Inventory, Net
Receivables, Net
Property and Equipment, Net
Intangible Assets, Net
Long-Lived Assets
Concentrations of Credit Risk
Revenue Recognition
Change in Accounting Estimate
Accrued Contract Loss Provision and Onerous Contracts
Stock-based Compensation
Leases
Income Tax Policy
Accounting for Uncertainty in Income Taxes
Research And Development Costs
Earnings (Loss) Per Share
Reclassifications
Recent Accounting Pronouncements
Schedule of accounts receivable allowance for credit losses
Schedule of property and equipment
Schedule of revenue percentage from major customers
Schedule of accounts receivable percentage due from major customers
Schedule of inventory
Schedule of intangible assets
Schedule Of future amortization expense of intangible assets
Schedule Of revenue by type
Schedule Of unearned revenue activity
Schedule Of unbilled accounts receivable
Schedule of future principal payments on note payable
Schedule of stock based compensation related to stock option and RSU expected to vest present in operations
Schedule of stock option activity
Schedule of stock option assumptions
Schedule of outstanding nonvested restricted stock
Schedule of warrant activity
Schedule of right of use assets
Schedule of operating lease liabilities
Schedule of future payments required on the operating lease liabilities
Schedule of supplemental cash flow information related to lease
Schedule of components of the company's net deferred income taxes
Schedule of pretax loss from continuing operations
Schedule of provision for income taxes
Schedule of effective income tax rate reconciliation
Allowance for credit losses, beginning balance
[Accounts Receivable, Allowance for Credit Loss]
Credit loss provision
Allowance for credit losses, ending balance
Property Plant And Equipment By Type Axis
Computers [Member]
Vehicles [Member]
Equipment [Member]
Equipment-in-progress [Member]
Equipment - Demo System [Member]
Total property and equipment
Estimated useful life
Less: accumulated depreciations
[SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation]
Total property and equipment, net
Finite-Lived Intangible Assets by Major Class [Axis]
Customer A [Member]
Customer B [Member]
Customer C [Member]
Customer D [Member]
Revenue concentration risk, percentage
Accounts receivable concentration risk, percentage
Financial Instrument [Axis]
Award Type [Axis]
Product and Service [Axis]
Options [Member]
Unvested Restricted Stock [Member]
Full-scale demonstration [Member]
Treatability study services [Member]
Warrants [Member]
Cash and cash equivalents
Antidilutive Excluded from Computation of Earnings Per Share, Amount
Revenue concentration risk, amount
Reduction of equipment revenue
Unearned revenue
[Unearned Premiums]
Revenue equipment receive
Depreciation expense
Research and Development Cost
Revenue receive as consideration
Costs and expenses
Allocated transaction price
Capitalized costs
Contract costs
Incurred costs in excess
Revenue recognition, milestone method
Inventory allowance
Revenues
Unbilled receivables
Contract loss provision
Plan Name [Axis]
ATM [Member]
Non- affiliate [Member]
Public float amount
Non-affiliate shares
Price per share
Accumulated deficit
Description of remaining availability under sales agreement
Net Income (loss)
Net cash used in operations
Net proceeds from ATM
Working capital
Net proceeds from common stock and warrants
Proceeds offering costs incurred
Raw materials
Less: inventory reserves
[Inventory Valuation Reserves]
Total
Inventory reserve
[Inventory, Raw Materials, Net of Reserves]
Indefinite-Lived Intangible Assets [Axis]
Patents [Member]
License agreement [Member]
Intangible assets beginning balance
[Indefinite-Lived Intangible Assets (Excluding Goodwill)]
Additions
Amortization
[Amortization of Intangible Assets]
Intangible assets ending balance
Estimated life
2026
2027
2028
2029
2030
Thereafter
Total
Amortization expense
Accounts Notes Loans And Financing Receivables By Billing Status Type Axis
Equipment revenue [Member]
Service revenue [Member]
Revenue
Revenue percentage
Revenue percentage
[Revenue percentage]
Unearned revenue at beginning of year
[Financial Guarantee Insurance Contracts, Unearned Premium Revenue]
Billings deferred
Refundable deposit returned
Recognition of prior unearned revenue
Unearned revenue at end of year
Unbilled accounts receivable at beginning of year
[Accounts Receivable, before Allowance for Credit Loss]
Services performed but unbilled
Services billed
Change in estimate on variable consideration
Unbilled accounts receivable at end of year
Award Date [Axis]
2025 [Member]
Long term liability
Current liability
Unbilled accounts receivable
[Unbilled accounts receivable]
2026
[Long-Term Debt, Maturity, Year One]
2027
[Long-Term Debt, Maturity, Year Two]
2028
[Long-Term Debt, Maturity, Year Three]
2029
[Long-Term Debt, Maturity, Year Four]
Thereafter
[Long-Term Debt, Maturity, after Year Five]
Note Payable, Net
Lender Name [Axis]
Secured Promissory Note [Member]
Financing Agreement [Member]
Bears interest
Equipment purchased
Payments of principal fixed amount
Outstanding principal balance
Outstanding balance
Debt instrument, stated interest rate
Proceeds from Issuance of Debt
Debt instrument, periodic payment amount
Principal amount of note payable
Maturity Date
Total repayment obligation including interest
Stock Issued During Period, Shares, Purchase of Assets
Exercise price per warrant
Stock price
Expected term
Expected volatility
Risk-free rate
Dividend yield
Short-Term Secured Promissory Note executed
Statement of Income Location, Balance [Axis]
Research and development
Research and Development Expense [Member]
Compensation and related expenses
[Compensation and related expenses]
General and administrative expenses
Stock-based compensation
Options Outstanding, beginning balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number]
Granted
Exercised
Expired/forfeited
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period]
Options Outstanding, ending balance
Option Exercisable, ending balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number]
Weighted Average Exercise Price, beginning balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price]
Weighted Average Exercise Price, Granted
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Expired/forfeit
Weighted Average Exercise Price, ending balance
Weighted Average Exercise Price, Exercisable, ending balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price]
Aggregate Intrinsic Value, beginning balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value]
Aggregate Intrinsic Value, Exercised
Aggregate Intrinsic Value, ending balance
Aggregate Intrinsic Value, Exercisable, ending balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value]
Weighted Average Remaining Contractual Life (years) Beginning
Weighted Average Remaining Contractual Life (years) Ending
Weighted Average Remaining Contractual Life (years), Exercisable
Options [Member]
Options Held [Member]
Bottom [Member]
Top [Member]
Dividend Yield
Expected Life
Expected Volatility
Risk-free Interest Rate
Nonvested, beginning of the period
[Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number]
Granted
Vested
[Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period]
Forfeited
[Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period]
Nonvested,end of the period
Weighted Average Exercise Price, beginning balance
[Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price]
Weighted Average Exercise Price granted
Weighted Average Exercise Price vested
Weighted Average Exercise Price forfeited
Weighted Average Exercise Price, ending balance
Granted
Repurchased
[Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Purchased for Award]
Warrants outstanding and exercisable, Granted
Warrants outstanding and exercisable, Repurchased
Warrants Aggregate Intrinsic Value, granted
Warrants Aggregate Intrinsic Value, Repurchased
Warrants Weighted Average Remaining Contractual Life (years) Beginning
Warrants Weighted Average Remaining Contractual Life (years) Ending
Warrants Weighted Average Remaining Contractual Life (years), Exercisable
Class of Stock [Axis]
Related Party Transaction [Axis]
Vesting [Axis]
Related and Nonrelated Parties [Axis]
Option Indexed to Issuer's Equity [Axis]
Common Stocks Shares [Member]
Restricted Stock [Member]
Restricted Stock Units RSU [Member]
Series D Convertible Preferred Stock
2021 Plan [Member]
2025 Sales Agreement [Member]
2022 Sales Agreement [Member]
Securities Purchase Agreement [Member]
Board of Directors and Executive [Member]
Stock Option [Member]
Vest Upon Achievement Of 20% Revenue Target [Member]
Restricted Stock Units [Member]
Bottom [Member]
Top [Member]
key employee [Member]
Performance based RSUs [Member]
Time based RSUs [Member]
Stock Option [Member]
Share-Based Payment Arrangement, Option [Member]
Vest Upon Achievement Of 50% Target [Member]
Vest Upon Achievement Of 50% Revenue Target [Member]
Performance Based Option [Member]
Price per share
Non-affiliate shares
Public float amount
Common stock, shares authorized
Issuance of common shares
Common stock, par value
Forfeited
Preferred stock, shares authorized
Preferred stock, par value
Preferred stock, shares designated
Number of option include performance conditions
Number of RSUs include performance conditions
Vest period
Weighted-average period
Weighted Average exercise price, granted
Unrecognized compensation expense
Common stock issued for services
Fair value of common share
Common stock for stock option exercises
Cash proceeds
Issued shares of common stock
Noncash transaction amount
Fair value of share-based payment award
Target number of RSUs
Unvested restricted stock units
Performance based restricted stock units
Unvested RSUs outstanding
Performance-based RSUs forfeited
Time-based RSUs forfeited
Performance-based vesting conditions for restricted stock units
Vesting conditions for restricted stock units
Grant-date fair value of the restricted stock
Vested
Options exercisable
Stock-based compensation
Dividend Yield
Expected Life
Common stock, shares issued
Common stock, shares outstanding
Warrants outstanding
Exercise price
Vested percentage
Warrants granted
Expected Volatility
Warrants Repurchased
Revenue Target
Warrant Exercise price
Achive revenue target
Repurchase of Warrants
Risk-free Interest Rate
Preferred stock, shares outstanding
Preferred stock, shares issued
Equity securities issued under at-the-market offering program
Description of remaining availability under sales agreement
Annual revenue achive for fiscal year 2026
Incremental value from exercise price reduction as deemed dividend
Sale of common stock
Proceeds from the exercise of options
Net proceeds from issuance
Stock issuance costs
Common stock share issued
Warrants to purchase aggregate shares of common stock
Share issued and sell description
Gross proceeds
Net proceeds
Payments for Other Fees
Fair values of warrant
Warrants issued
Vested, outstanding number
AirSCWO [Member]
Expenses from Transactions with Related Party
Right -of-use assets
Accumulated amortization
[Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization]
Right-of-use asset, net
Operating lease liabilities, current
Operating lease liabilities, less current portion
Total operating lease liabilities
2026
[Lessee, Operating Lease, Liability, to be Paid, Year One]
2027
[Lessee, Operating Lease, Liability, to be Paid, Year Two]
2028
[Lessee, Operating Lease, Liability, to be Paid, Year Three]
2029
[Lessee, Operating Lease, Liability, to be Paid, Year Four]
Total
[Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year]
Less present value discount
[Lessee, Operating Lease, Liability, Undiscounted Excess Amount]
Total operating lease liabilities
Operating cash outflows from lease liabilities
Liability Class [Axis]
Title and Position [Axis]
Employment Agreements [Member]
Former Chief Executive Officer [Member]
Interim Chief Executive Officer [Member]
Legal Settlement [Member]
Chief Operating Officer [Member]
Chief Financial Officer [Member]
Other Employee Matters [Member]
Improvements reimbursed
Monthly rental payments
Payment for settlement
Salary
Lease payments
Weighted average incremental borrowing rate
Operating lease liabilities, over a remaining lease term
Rent expense
Accrued salaries
Description related to grant of restricted stock units and stock options
Goodwill
Capitalized Start-Up Costs
Other Intangibles
Other Accruals
Stock Compensation
Net Operating Loss
Contribution Carryforward
Unearned revenue
[Unearned revenue]
Research and Development Costs
Reserves and allowances
Gross deferred tax assets
Valuation Allowance
[Deferred Tax Assets, Valuation Allowance]
Net deferred tax assets after valuation allowance
Depreciation
Lease liabilities
Total deferred tax liabilities
[Deferred Tax Liabilities, Net]
Net deferred tax asset (liability)
Income Tax Jurisdiction [Axis]
U.S. Domestic
Foreign
Net Loss before Income Taxes
Current Expense: Federal
Current Expense: State
Current Expense: Foreign
Total Current Tax Expense
Deferred Expense: Federal
Deferred Expense: State
Deferred Expense: Foreign
Total Deferred Tax Expense
Total Tax Expense
United States Statutory Tax Rate, amount
United States Statutory Tax Rate, percent
Change in state tax, percent
Changes in Valuation Allowance, amount
Changes in Valuation Allowance, percent
Permanent Differences
State Taxes
Stock-based compensation, amount
Stock-based compensation, percent
Other Adjustments, amount
Other Adjustments, percent
Effective Tax Rate, amount
Effective Tax Rate, percent
Federal [Member]
State [Member]
Net operating loss carry forwards
Subsequent Event Type Axis
Subsequent Events [Member]
Shares issued
Common stock shares issued to employee
Exercise price
[Exercise price]
Cashless option exercise
Description of debt instrument
Options exercised
Revenue arrangement
Initial monthly licensee fee