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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities:    
Net loss $ (3,705,000) $ (3,711,000)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 1,000 1,000
Stock-based compensation 356,000 293,000
Noncash interest expense 100,000 135,000
Change in fair value of equity investment 2,000
Gain/Loss on termination of investment 1,000
Changes in operating assets and liabilities:    
Trade receivable 221,000 (309,000)
Other accounts receivable and prepaid expenses (136,000) 558,000
Inventory 541,000 (557,000)
Trade payables (91,000) 72,000
Other accounts payable and accrued expenses 242,000 (18,000)
Deferred revenue (46,000) (67,000)
Accrued severance pay, net (1,000)
Net cash used in operating activities (2,516,000) (3,602,000)
Cash flows from investing activities:    
Purchases of fixed assets (3,000) (1,000)
Net cash used in investing activities (3,000) (1,000)
Cash flows from financing activities:    
Proceeds from sale of common stock, net 4,215,000
Proceeds from exercise of options 7,000
Proceeds from exercise of prefunded warrants 1,000
Net cash provided by financing activities 1,000 4,222,000
Effects of currency translation on cash (13,000) (49,000)
Net (decrease) increase in cash (2,531,000) 570,000
Cash at beginning of period 3,283,000 2,713,000
Cash at end of period $ 752,000 $ 3,283,000