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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net loss $ (3,756) $ (2,980)
Adjustments to reconcile net loss to net cash used in operating activities:    
Common stock issued for services 7 6
Share-based compensation, net of tax withholdings 96 382
Depreciation and amortization 98 91
Right-of-use asset amortization 44 43
Lease amendments   (3)
Change in operating assets and liabilities:    
Contract assets (75) 183
Accounts receivable 140 152
Prepaid expenses and other assets (96) (238)
Accounts payable, accrued liabilities, and lease liabilities 330 78
Accrued compensation and related taxes (13) 52
Contract liabilities 1,603 (291)
Net cash used in operating activities (1,622) (2,525)
Cash flows from investing activities:    
Acquisition of fixed assets (4) (18)
Disbursements for patents and other intangible assets (53) (99)
Net cash used in investing activities (57) (117)
Cash flows from financing activities:    
Proceeds from issuance of common stock, net of offering costs   12,967
Proceeds from exercise of warrants 24  
Taxes paid related to vesting of restricted stock units (41) (31)
Net cash provided by (used in) financing activities (17) 12,936
Effect of exchange rate changes on cash and cash equivalents   (4)
Net change in cash and cash equivalents (1,696) 10,290
Cash and cash equivalents, beginning of period 14,035 5,684
Cash and cash equivalents, end of period 12,339 15,974
Supplemental disclosure of cash flow information:    
Officer and employee equity awards for prior year accrued compensation 279 326
Non-cash impact of new lease $ 68 $ 32