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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities:    
Net loss $ (2,076) $ (1,108)
Adjustments to reconcile net loss to net cash used in operating activities:    
Common stock issued for services 4 3
Share-based compensation, net of tax withholdings 45 51
Depreciation and amortization 47 45
Right-of-use asset amortization 22 22
Change in operating assets and liabilities:    
Contract assets 44 188
Accounts receivable 30 (282)
Prepaid expenses and other assets 110 1
Accounts payable, accrued liabilities, and lease liabilities (33) 253
Accrued compensation and related taxes (118) (96)
Contract liabilities 814 (78)
Net cash used in operating activities (1,111) (1,001)
Cash flows from investing activities:    
Acquisition of fixed assets (4)  
Disbursements for patents and other intangible assets (37) (34)
Net cash provided used in investing activities (41) (34)
Cash flows from financing activities:    
Proceeds from exercise of warrants 24  
Taxes paid related to vesting of restricted stock units (41) (22)
Net cash used in financing activities (17) (22)
Effect of exchange rate changes on cash and cash equivalents   (3)
Net change in cash and cash equivalents (1,169) (1,060)
Cash and cash equivalents, beginning of period 14,035 5,684
Cash and cash equivalents, end of period 12,866 4,624
Supplemental disclosure of cash flow information:    
Officer and employee equity awards for prior year accrued compensation $ 279 $ 326