Annual report pursuant to Section 13 and 15(d)

Note 8 - Equity - Warrants (Details)

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Note 8 - Equity - Warrants (Details) - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Unvested, beginning balance (in shares) 339,288    
Granted, Number of Units (in shares)   670,375  
Unvested, beginning balance (in shares)   339,288  
Goods and Services Exchanged for Equity Instrument [Member] | Warrant [Member]      
Unvested, beginning balance (in shares) 90,000 90,000  
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 8.13 $ 8.13  
Outstanding, Weighted Average Remaining Contractual Term (Year) 1 year 328 days 2 years 328 days 3 years 328 days
Granted, Number of Units (in shares)  
Granted, Weighted Average Exercise Price (in dollars per share)  
Unvested, beginning balance (in shares) 90,000 90,000 90,000
Outstanding, Weighted Average Exercise Price (in dollars per share) $ 8.13 $ 8.13 $ 8.13
Exercisable, Number of Units (in shares) 90,000    
Exercisable, Weighted Average Exercise Price (in dollars per share) $ 8.13    
Exercisable, Weighted Average Remaining Contractual Term 1.9