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Consolidated Statements of Stockholders' Equity - USD ($)
Series A-1 Convertible Preferred Stock [Member]
Series B-1 Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance as of December 31, 2015 (in shares) at Dec. 31, 2015 90,000 105,000 5,508,261      
Balance as of December 31, 2015 at Dec. 31, 2015 $ 9 $ 11 $ 551 $ 76,760,796 $ (58,611,450) $ 18,149,917
Issuance of common stock for directors’ fees and CEO stock award (in shares)     27,248      
Issuance of common stock for directors’ fees and CEO stock award     $ 2 61,998   62,000
Issuance of common stock pursuant to securities purchase agreement (in shares)     516,667      
Issuance of common stock pursuant to securities purchase agreement     $ 52 1,859,948   1,860,000
Dividends declared on preferred stock       (802,500)   (802,500)
Issuance of stock for consultants (in shares)     41,667      
Issuance of stock for consultants     $ 4 104,996   105,000
Stock issuance costs       (84,866)   (84,866)
Reclassification of derivative liability       92,199   92,199
Share-based compensation       260,842   260,842
Net loss         (4,189,704) (4,189,704)
Balance as of December 31, 2016 (in shares) at Dec. 31, 2016 90,000 105,000 6,093,843      
Balance as of December 31, 2016 at Dec. 31, 2016 $ 9 $ 11 $ 609 78,253,413 (62,801,154) 15,452,888
Issuance of common stock for directors’ fees (in shares)     27,248      
Issuance of common stock for directors’ fees     $ 2 61,998   $ 62,000
Exercise of stock options (in shares)           0
Issuance of common stock for directors’ fees and CEO stock award (in shares)     11,244     1,610
Issuance of common stock for directors’ fees and CEO stock award     $ 1 32,029   $ 32,030
Issuance of common stock pursuant to securities purchase agreement (in shares)     555,556      
Issuance of common stock pursuant to securities purchase agreement     $ 56 1,999,944   2,000,000
Dividends declared on preferred stock       (769,158)   (769,158)
Issuance of stock for consultants (in shares)     117,849      
Issuance of stock for consultants     $ 12 354,573   354,585
Stock issuance costs       (80,366)   (80,366)
Share-based compensation       498,654   498,654
Net loss         (4,275,338) (4,275,338)
Balance as of December 31, 2016 (in shares) at Dec. 31, 2017 62,596 105,000 7,691,324      
Balance as of December 31, 2016 at Dec. 31, 2017 $ 6 $ 11 $ 769 80,829,001 $ (67,076,492) $ 13,753,295
Issuance of common stock for directors’ fees (in shares)     11,244     1,610
Issuance of common stock for directors’ fees     $ 1 32,029   $ 32,030
Conversion of dividends payable on A-1 preferred stock (in shares)     150,000      
Conversion of dividends payable on A-1 preferred stock     $ 15 539,985   $ 540,000
Conversion of A-1 preferred stock to common stock (in shares) (27,404)   761,222      
Conversion of A-1 preferred stock to common stock $ (3)   $ 76 $ (73)    
Exercise of stock options (in shares)     1,610     4,167