Note 2 - Loss Per Share (Details) - Net Loss Per Share (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
Numerator:
Net income (loss) (in Dollars)	$ 1,891	$ 4,251	$ (68)	$ 3,611
Denominator:
Denominator for basic earnings per share – weighted-average shares	14,852	14,732	14,809	14,727
Equivalent shares issuable upon conversion of unvested restricted stock	200	55		69
Equivalent shares issuable upon conversion of unvested employee stock options	0	0
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed conversions	15,052	14,787	14,809	14,796
Basic income (loss) per share: (in Dollars per share)	$ 0.13	$ 0.29	$ 0.00	$ 0.25
Diluted income (loss) per share: (in Dollars per share)	$ 0.13	$ 0.29	$ 0.00	$ 0.24