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Statements of Stockholders' Equity - USD ($)
Total
Common Stock
Additional paid-in capital
Retained Earnings (Deficit)
Treasury Stock
Accumulated Other Comprehensive (Loss)
Balance at Dec. 31, 2014 $ 9,258,368 $ 326,115 $ 10,042,305 $ (574,567) $ (512,154) $ (23,331)
Balance, Shares at Dec. 31, 2014   3,261,148     234,114  
Net income 1,213,239 1,213,239
Other comprehensive income (loss), net of taxes (26,925) (26,925)
Exercise of stock options 120,210 58,957 $ 61,253
Exercise of stock options, Shares         (28,000)  
Tax benefits related to stock options 25,706 25,706
Stock-based compensation 23,222 23,222
Balance at Dec. 31, 2015 10,613,820 $ 326,115 10,150,190 638,672 $ (450,901) (50,256)
Balance, Shares at Dec. 31, 2015   3,261,148     206,114  
Net income 508,448 508,448
Other comprehensive income (loss), net of taxes 26,354 26,354
Public offering of common stock, net of $586,779 of offering costs 5,313,223 $ 112,381 5,200,842
Public offering of common stock, net of $586,779 of offering costs, Shares   1,123,810        
Private placement of common stock, net of $303,450 of placement costs 3,160,923 $ 65,988 3,094,935
Private placement of common stock, net of $303,450 of placement costs, Shares   659,880        
Exercise of stock options 31,975 13,017 $ 18,958
Exercise of stock options, Shares         (8,666)  
Stock-based compensation 67,399 67,399
Balance at Dec. 31, 2016 $ 19,722,142 $ 504,484 $ 18,526,383 $ 1,147,120 $ (431,943) $ (23,902)
Balance, Shares at Dec. 31, 2016   5,044,838     197,448