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STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
STATEMENTS OF OPERATIONS        
Revenue $ 7,836 $ 7,569 $ 15,608 $ 14,475
Cost of revenue 1,787 1,841 3,489 3,551
Gross profit 6,049 5,728 12,119 10,924
Operating expenses:        
Selling and marketing 3,253 3,425 6,496 7,151
Research and development 2,033 1,406 3,779 2,935
General and administrative 2,791 3,505 5,926 7,061
Total operating expenses 8,077 8,336 16,201 17,147
Operating loss (2,028) (2,608) (4,082) (6,223)
Other income (expense):        
Interest income (expense), net 55 (2) 98 (3)
Net loss $ (1,973) $ (2,610) $ (3,984) $ (6,226)
Net loss per common share-basic $ (0.17) $ (0.23) $ (0.34) $ (0.54)
Net loss per common share-diluted $ (0.17) $ (0.23) $ (0.34) $ (0.54)
Weighted average common shares outstanding-basic 11,738 11,489 11,688 11,467
Weighted average common shares outstanding-diluted 11,738 11,489 11,688 11,467