v3.25.2
Condensed Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES    
Net Loss $ (10,176) $ (9,183)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 24 30
Operating lease right of use asset amortization 125 116
Financing lease right of use asset amortization 501 562
Stock-based compensation 2,287 2,011
Change in unrealized gain (loss) on cash equivalents 0 (1)
Net accretion of discounts on available-for-sale securities (6) (87)
Changes in operating assets and liabilities:    
Accounts receivable 6 (6)
Unbilled contracts receivable 0 550
Interest receivable 10 14
Prepaid and other current assets (358) (335)
Accounts payable 173 (70)
Accrued expenses (32) 27
Accrued payroll expenses (679) (788)
Operating lease liability (158) (166)
Deferred revenue (4) 13
Net cash used in operating activities (8,287) (7,313)
CASH FLOWS FROM INVESTING ACTIVITIES    
Acquisition of property and equipment (14) (6)
Purchase of available-for-sale securities 0 (4,290)
Maturity of available-for-sale securities 1,000 7,500
Net cash provided by investing activities 986 3,204
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from at-the-market sale of stock, net of commissions and expenses 3,199 6,392
Proceeds from exercise of stock options 905 86
Proceeds from stock sale 0 10
Payments on principal of financing lease (555) (486)
Net cash provided by financing activities 3,549 6,002
Net increase/(decrease) in cash and cash equivalents (3,752) 1,893
Cash and cash equivalents at beginning of period 25,778 12,591
Cash and cash equivalents at end of period 22,026 14,484
Supplemental information:    
Cash paid for interest 39 63
Cash paid for taxes $ 0 $ 0