Note 2 - Loss Per Share (Detail) - Calculation of Net Loss Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss) (in Dollars)	$ 4,251	$ 1,655	$ 3,611	$ (809)
Denominator for basic earnings per share – weighted- average shares	14,732	14,702	14,727	14,657
Equivalent shares issuable upon conversion of unvested restricted stock	55	131	69
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed conversions	14,787	14,833	14,796	14,657
Basic income (loss) per share: (in Dollars per share)	$ 0.29	$ 0.11	$ 0.25	$ (0.06)
Diluted income (loss) per share: (in Dollars per share)	$ 0.29	$ 0.11	$ 0.24	$ (0.06)