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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net loss $ (3,367) $ (2,071)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 287 279
Stock-based compensation 562 407
Allowance for credit losses (94) 8
Non-cash lease expense 25 35
Changes in assets and liabilities:    
Accounts receivable 523 (1,210)
Unbilled receivables (260) 101
Prepaid expenses and other current assets (199) 192
Accounts payable (388) 323
Accrued expenses (240) (49)
Deferred revenue (940) (1,094)
Net cash used in operating activities (4,091) (3,079)
Cash flows from investing activities:    
Purchases of property and equipment (45) (45)
Purchase of marketable securities (4,948) (3,933)
Sale of marketable securities 3,500 8,974
Net cash (used in) provided by investing activitie (1,493) 4,996
Cash flows from financing activities:    
Proceeds from issuance of common stock 30 38
Payments made for taxes of employees who surrendered shares related to unrestricted stock (3)  
Repurchase of common stock (115)  
Net cash (used in) provided by financing activities (88) 38
(Decrease) increase in cash and cash equivalents (5,672) 1,955
Cash and cash equivalents, beginning of period 12,972 10,002
Cash and cash equivalents, end of period 7,300 11,957
Supplemental disclosure: Cash paid for income taxes $ 7 $ 13