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CONDENSED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Income Statement [Abstract]    
REVENUES $ 4,894 $ 4,680
COST OF REVENUES (502) (435)
Gross profit 4,392 4,245
OPERATING EXPENSES    
Selling, general and administrative 3,453 3,949
Research and development 1,287 819
Total operating expenses 4,740 4,768
Loss from operations (348) (523)
OTHER INCOME AND EXPENSE    
Other income and expense, net 30 83
Total other income and (expense), net 30 83
Net loss before provision for income taxes (318) (440)
Provision for income taxes 0 2
Net loss $ (318) $ (442)
Loss per common share -    
Basic (in dollars per share) $ (0.02) $ (0.02)
Diluted (in dollars per share) $ (0.02) $ (0.02)
Weighted average common shares used in computing per share amounts -    
Basic (in shares) 19,816,043 19,404,561
Diluted (in shares) 19,816,043 19,404,561