Note 11 - Shares Outstanding and Earnings Per Share (Details) - Earnings Per Share Calculation (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share Calculation [Abstract]
Weighted average basic shares outstanding	11,062	10,960	11,059	10,956
Assumed exercise of stock options and issuance of stock awards	10	29	8	31
Weighted average diluted shares outstanding	11,072	10,989	11,067	10,987
Net income (in Dollars)	$ 2,525	$ 4,526	$ 7,689	$ 10,756
Basic earnings per share (in Dollars per share)	$ 0.23	$ 0.41	$ 0.70	$ 0.98
Diluted earnings per share (in Dollars per share)	$ 0.23	$ 0.41	$ 0.69	$ 0.98
Anti-dilutive securities outstanding	199	178	199	178