Note 16 - Shares Outstanding and Earnings Per Share (Detail) - Earnings Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Weighted average basic shares outstanding	10,993	10,961	10,960	10,988	10,941	10,937	10,905	10,935	10,989	10,937	10,905
Assumed exercise of stock options and issuance of stock awards									6	14	13
Weighted average diluted shares outstanding	10,993	10,967	10,989	10,997	10,953	10,951	10,947	10,945	10,995	10,951	10,918
Net income (in Dollars)									$ 2,277	$ 24,970	$ 2,132
Basic earnings per share (in Dollars per share)	$ (0.92)	$ 0.15	$ 0.41	$ 0.57	$ 0.05	$ 0.56	$ 0.73	$ 0.94	$ 0.21	$ 2.28	$ 0.20
Diluted earnings per share (in Dollars per share)	$ (0.92)	$ 0.15	$ 0.41	$ 0.57	$ 0.05	$ 0.56	$ 0.73	$ 0.94	$ 0.21	$ 2.28	$ 0.20
Anti-dilutive securities outstanding									194	61	101