Note 9 - Preferred Stock and Common Stock Warrants (Details) (USD $)	0 Months Ended		1 Months Ended	9 Months Ended		9 Months Ended		1 Months Ended
	May 08, 2013	Jun. 13, 2012	Jan. 30, 2009	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 First Five Years [Member] Series A Preferred Stock [Member]	Sep. 30, 2013 After Five Years [Member] Series A Preferred Stock [Member]	Jan. 30, 2009 Series A Preferred Stock [Member]	Sep. 30, 2013 Series A Preferred Stock [Member]	Apr. 15, 2013 Series A Preferred Stock [Member]
Note 9 - Preferred Stock and Common Stock Warrants (Details) [Line Items]
Stock Issued During Period, Shares, New Issues (in Shares)								17,000
Warrant Term			10 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)			459,459
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)			5.55
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants			$ 17,000,000
Preferred Stock, Dividend Rate, Percentage						5.00%	9.00%
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)									$ 1,000
Preferred Stock, Redemption Amount		5,000,000
Preferred Stock, Amount of Preferred Dividends in Arrears		19,444
Preferred Stock, Redemption Price Per Share (in Dollars per share)		$ 1,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased (in Shares)										12,000
Warrants and Rights Outstanding	2,003,250				1,377,811
Payments for Repurchase of Warrants	$ 2,003,250			$ 2,003,250