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Condensed Statements of Operations (Unaudited) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Revenues $ 1,447,046 $ 1,133,071 $ 3,624,019 $ 2,258,701
Cost of sales 333,402 97,285 793,861 324,433
Gross profit 1,113,644 1,035,786 2,830,158 1,934,268
Operating expenses:        
Selling, general and administrative 948,581 957,255 1,884,569 1,895,045
Income from operations 165,063 78,531 945,589 39,223
Interest income 12,072 11,263 60,052 69,377
Income before taxes 177,135 89,794 1,005,641 108,600
Income tax expense (benefit) 23,500 (9,800) 236,000 19,200
Net income $ 153,635 $ 99,594 $ 769,641 $ 89,400
Net income per share - basic (in dollars per share) $ 0.03 $ 0.02 $ 0.17 $ 0.02
Net income per share - diluted (in dollars per share) $ 0.03 $ 0.02 $ 0.17 $ 0.02
Weighted-average shares outstanding - basic (in shares) 4,511,988 4,486,788 4,506,361 4,486,788
Weighted-average shares outstanding - diluted (in shares) 4,522,075 4,492,435 4,521,711 4,493,684