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Note 7 - Earnings (Loss) Per Share Common Stock ("EPS") - Reconciliation of Numerator of Basic and Diluted EPS Calculations (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Basic Numerator:        
Net loss $ (1,134,422) $ (1,079,584) $ (3,673,125) $ (1,250,539)
Convertible preferred stock dividends (200,625) (601,875)
Net loss available to common stockholders $ (1,335,047) $ (1,079,584) $ (4,275,000) $ (1,250,539)
Basic Denominator (in shares) 66,360,445 66,038,941 66,253,808 66,013,958
Per Share Amount (in dollars per share) $ (0.02) $ (0.02) $ (0.06) $ (0.02)