Note 10 - Stock Based Compensation (Details) - Summary of the Status of the Company's Non-Vested Restricted Stock Awards (USD $)	0 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary of the Status of the Company's Non-Vested Restricted Stock Awards [Abstract]
Non-vested stock awards outstanding-Number Outstanding	17,200	1,557	4,294	12,193
Non-vested stock awards outstanding-Weighted Average Exercise Price	15.62	14.13	14.63	14.22
Granted-Number Outstanding		111	2,942	11,333
Granted-Weighted Average Exercise Price (in Dollars per share)		$ 5.36	$ 16.47	$ 12.29
Vested and issued-Number Outstanding		(444)	(9,135)	(14,933)
Vested and issued-Weighted Average Exercise Price (in Dollars per share)		$ 8.40	$ 15.17	$ 14.04
Forfeited-Number Outstanding		(2,407)	(1,703)	(1,407)
Forfeited-Weighted Average Exercise Price (in Dollars per share)		$ 15.69	$ 12.56	$ 17.82