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Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Total
Balances at beginning at Dec. 31, 2017 $ 7 $ 45,702 $ 79,101,824 $ (39,378) $ (61,960,910) $ 17,147,245
Balances at beginning (in shares) at Dec. 31, 2017 6,760 45,701,593        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock in exchange of preferred stock $ (4) $ 4,651 (5,251)     (604)
Issuance of common stock in exchange of preferred stock (in shares) (4,000) 4,651,163        
Stock option expense     770,862     770,862
Issuance of common stock pursuant to exercise of stock options - Cashless   $ 306 (306)    
Issuance of common stock pursuant to exercise of stock options - Cashless (in shares)   306,340        
Issuance of common stock pursuant to exercise of stock options - Cash   $ 298 142,329     142,627
Issuance of common stock pursuant to exercise of stock options - Cash (in shares)   297,773        
Preferred stock dividend payable         (82,691) (82,691)
Foreign currency translation income (loss)       (53,504)   (53,504)
Net income (loss)         (2,876,504) (2,876,504)
Balances at ending at Mar. 31, 2018 $ 3 $ 50,957 80,009,458 (92,882) (64,920,105) 15,047,431
Balances at ending (in shares) at Mar. 31, 2018 2,760 50,956,869        
Balances at beginning at Dec. 31, 2018 $ 0 $ 57,003 85,153,667 (26,997) (73,380,691) 11,802,982
Balances at beginning (in shares) at Dec. 31, 2018 (0) 57,002,508        
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock option expense     1,358,503     1,358,503
Issuance of common stock pursuant to exercise of stock options - Cashless   $ 115 (115)    
Issuance of common stock pursuant to exercise of stock options - Cashless (in shares)   115,107        
Issuance of common stock pursuant to exercise of stock options - Cash   $ 80 24,680     24,760
Issuance of common stock pursuant to exercise of stock options - Cash (in shares)   80,750        
Beneficial Conversion Feature on Convertible Instruments     166,667     166,667
Preferred stock dividend payable          
Foreign currency translation income (loss)       260,665   260,665
Net income (loss)         11,656,594 11,656,594
Balances at ending at Mar. 31, 2019 $ 0 $ 57,198 $ 86,703,402 $ 233,668 $ (61,724,097) $ 25,270,171
Balances at ending (in shares) at Mar. 31, 2019 (0) 57,198,365