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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED)        
Revenues $ 2,647,300 $ 2,982,500 $ 5,130,800 $ 5,787,900
Cost of revenues 1,354,900 1,632,500 2,797,600 3,099,900
Gross profit 1,292,400 1,350,000 2,333,200 2,688,000
Operating expenses:        
General and administrative 1,062,000 1,299,900 2,583,800 2,869,200
Selling 900,600 1,591,800 1,798,400 3,036,600
Research and development 666,000 684,500 1,376,700 1,476,000
Total operating expenses 2,628,600 3,576,200 5,758,900 7,381,800
Loss from operations (1,336,200) (2,226,200) (3,425,700) (4,693,800)
Other income:        
Other income (expense), net (2,000) 4,100 (6,300) 90,400
Interest income 54,600 37,000 96,800 46,400
Total other income, net 52,600 41,100 90,500 136,800
Loss from continuing operations before income tax expense benefit (1,283,600) (2,185,100) (3,335,200) (4,557,000)
Income tax expense 0 108,800 0 108,800
Loss from continuing operations (1,283,600) (2,293,900) (3,335,200) (4,665,800)
Discontinued operations:        
Gain from discontinued operations, net of tax 0 1,900 0 3,300
Net loss (1,283,600) (2,292,000) (3,335,200) (4,662,500)
Comprehensive gain (loss):        
Unrealized holding (loss) on investment securities, net of tax 0 (2,100) 0 1,600
Foreign currency translation (loss) gain 15,800 (30,100) (44,500) 10,100
Comprehensive (loss) gain 15,800 (32,200) (44,500) 11,700
Total comprehensive loss $ (1,267,800) $ (2,324,200) $ (3,379,700) $ (4,650,800)
Basic and Diluted loss per common share        
Continuing operations $ (0.12) $ (0.33) $ (0.32) $ (0.67)
Discontinued operations 0 0 0 0
Consolidated operations $ (0.12) $ (0.33) $ (0.32) $ (0.67)