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Note 7 - Earnings (Loss) Per Share Common Stock ("EPS") - Securities Excluded from the Diluted Per Share Calculation (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Preferred Stock [Member]        
Antidilutive securities (in shares) 65,000,000 65,000,000
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Employee Stock Option [Member]        
Antidilutive securities (in shares) 347,897 12,917 160,770 68,227
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Warrant [Member]        
Antidilutive securities (in shares) 78,342
Exercise Price Less Than Average Market Price Of Common Shares [Member]        
Antidilutive securities (in shares) 65,426,239 12,917 65,160,770 68,227
Exercise Price Greater Than Average Market Price Of Common Shares [Member] | Employee Stock Option [Member]        
Antidilutive securities (in shares) 2,580,000 3,991,332 2,780,000 2,888,332
Exercise Price Greater Than Average Market Price Of Common Shares [Member] | Warrant [Member]        
Antidilutive securities (in shares) 19,880,414 20,455,414 20,455,414 20,455,414
Exercise Price Greater Than Average Market Price Of Common Shares [Member]        
Antidilutive securities (in shares) 22,460,414 24,446,746 23,235,414 23,343,746