Annual report pursuant to Section 13 and 15(d)

STATEMENTS OF STOCKHOLDERS' EQUITY

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STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total
Balance beginning at Dec. 31, 2018 $ 409,329 $ 4,595,214 $ 4,300,468 $ (344,204) $ 8,960,807
Balance beginning (in shares) at Dec. 31, 2018 40,932,911        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of stock-based compensation $ 1,489 315,036     316,525
Issuance of stock-based compensation (in shares) 148,877        
Compensation expense related to stock options   888,319     888,319
Cancellation of common stock $ (20) (2,800)     (2,820)
Cancellation of common stock (in shares) (2,000)        
Issuance of warrants exercised $ 10,000 440,000     450,000
Issuance of warrants exercised (in shares) 1,000,000        
Issuance upon options exercised $ 1,600 57,300     58,900
Issuance upon options exercised (in shares) 160,000        
Net income (loss)     564,349   564,349
Balance ending at Dec. 31, 2019 $ 422,398 6,293,069 4,864,817 (344,204) 11,236,080
Balance ending (in shares) at Dec. 31, 2019 42,239,788        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of stock-based compensation $ 322 240,638     240,960
Issuance of stock-based compensation (in shares) 32,181        
Compensation expense related to stock options   1,377,772     1,377,772
Repurchase of shares       (3,499,358) (3,499,358)
Litigation settlement options   347,008     347,008
Litigation settlement share issuance $ 952 937,142     938,094
Litigation settlement share issuance (in shares) 95,238        
Issuance upon options exercised $ 7,191 88,689     95,880
Issuance upon options exercised (in shares) 719,162        
Capital raise $ 35,938 26,596,668     26,632,606
Capital raise (in shares) 3,593,750        
Net income (loss)     (1,212,063)   (1,212,063)
Balance ending at Dec. 31, 2020 $ 466,801 $ 35,880,986 $ 3,652,754 $ (3,843,562) $ 36,156,979
Balance ending (in shares) at Dec. 31, 2020 46,680,119