Note 14 - Stockholders' Deficit (Details Textual)						12 Months Ended
	Dec. 11, 2017 $ / shares shares	Feb. 29, 2016 shares	Dec. 01, 2014 shares	Dec. 18, 2013 USD ($) shares	Aug. 04, 2013 USD ($) shares	Dec. 31, 2017 $ / shares shares	Dec. 31, 2016 $ / shares
Common Stock, No Par Value | $ / shares						$ 0
Stock Issued During Period, Shares, New Issues		6,851,843			75
Proceeds from Issuance of Common Stock | $					$ 75
Common Stock, Shares Authorized to be Issued, Shares				6,999,925
Common Stock, Shares Authorized to be Issued, Value | $				$ 7
Debt Instrument, Convertible, Number of Equity Instruments						4,718,113
Preferred Stock [Member]
Stock Repurchased and Retired During Period, Shares						100,000
Preferred Stock [Member] | President [Member]
Stock Issued During Period, Shares, New Issues			99,286
Stock Repurchased and Retired During Period, Shares	99,286
Stock Repurchased, Price Per Share | $ / shares	$ 9.93
Preferred Stock, Voting Rights Per Each Share	500