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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS    
Revenue $ 2,664 $ 3,124
Cost of revenue 1,715 1,871
Gross profit 949 1,253
Operating expenses:    
Engineering, research and development 434 576
Selling, general and administrative 1,364 1,428
Total operating expenses 1,798 2,004
(Loss) from operations (849) (751)
Other income (expense), net 5 32
(Loss) before income taxes (844) (719)
Income tax expense (benefit) (39) 22
Net (loss) (805) (741)
Net (loss) applicable to common stockholders $ (905) $ (841)
Earnings (loss) per common share - basic $ (0.09) $ (0.09)
Earnings (loss) per common share - diluted $ (0.09) $ (0.09)
Weighted average common shares outstanding - basic 9,864 9,860
Weighted average common shares outstanding - diluted 9,864 9,860