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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
Convertible Preferred Stock [Member]
Series A-1 Shares [Member]
Convertible Preferred Stock [Member]
Series B-1 Shares [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2013     57,921,258      
Balance at Dec. 31, 2013     $ 5,792 $ 55,915,715 $ (54,870,572) $ 1,050,935
Issuance of common stock and warrants pursuant to security purchase agreements (in shares)     7,974,999      
Issuance of common stock and warrants pursuant to security purchase agreements     $ 797 1,594,203   $ 1,595,000
Issuance of common stock in exchange for cashless exercise of warrants (in shares)     76,830      
Issuance of common stock in exchange for cashless exercise of warrants     $ 8 (8)    
Issuance of common stock in exchange for cashless exercise of options (in shares)     28,173     54,166
Issuance of common stock in exchange for cashless exercise of options     $ 3 (3)    
Reclassification of derivative liability       42,597   $ 42,597
Repurchase of warrants       (150,000)   (150,000)
Stock issuance costs       (103,157)   (103,157)
Share-based compensation       207,258   207,258
Loss from continuing operations         (1,883,572) (1,883,572)
Balance (in shares) at Dec. 31, 2014     66,001,260      
Balance at Dec. 31, 2014     $ 6,600 57,506,605 (56,754,144) $ 759,061
Issuance of common stock for directors’ fees          
Issuance of common stock and warrants pursuant to security purchase agreements (in shares) 90,000 105,000      
Issuance of common stock and warrants pursuant to security purchase agreements $ 9 $ 11   19,499,980   $ 19,500,000
Issuance of common stock in exchange for cashless exercise of options (in shares)           0
Stock issuance costs       (459,102)   $ (459,102)
Share-based compensation       273,089   273,089
Loss from continuing operations         (1,857,306) (1,857,306)
Balance (in shares) at Dec. 31, 2015 90,000 105,000 66,098,482      
Balance at Dec. 31, 2015 $ 9 $ 11 $ 6,610 76,754,737 $ (58,611,450) 18,149,917
Issuance of common stock for directors’ fees (in shares)     97,222      
Issuance of common stock for directors’ fees     $ 10 16,990   17,000
Dividends declared on preferred stock       (133,851)   (133,851)
Issuance of warrants for investment advisor       $ 51,026   $ 51,026