Note 15 - Preferred Stock and Common Stock Warrant (Details Textual) - USD ($)				12 Months Ended
	Apr. 03, 2014	Jun. 13, 2012	Jan. 30, 2009	Dec. 31, 2014	May 08, 2013
Class of Warrant or Rights, Term			10 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			459,459
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 5.55
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants			$ 17
Preferred Stock, Liquidation Preference Per Share			$ 1,000
Warrants and Rights Outstanding					$ 2,003,250
Stock Redeemed or Called During Period, Value				$ 12,000,000
First Five Years [Member]
Preferred Stock, Dividend Rate, Percentage			5.00%
After Five Years [Member]
Preferred Stock, Dividend Rate, Percentage			9.00%
Series A Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues			17,000
Stock Redeemed or Called During Period, Shares		5,000
Preferred Stock, Redemption Amount		$ 5,000,000
Preferred Stock, Amount of Preferred Dividends in Arrears		$ 19,444
Preferred Stock, Shares Outstanding		12,000
Stock Redeemed or Called During Period, Value	$ 12,000,000
Preferred Stock, Dividends Per Share, Declared	$ 19.50