Note 2 - Income Per Share (Details) - Net Income per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income (in Dollars)	$ 1,973	$ 1,002	$ 1,905	$ 4,612
Denominator:
Denominator for basic earnings per share – weighted-average shares	14,864	14,757	14,827	14,737
Equivalent shares issuable upon conversion of unvested restricted stock	179	50	196	36
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed conversions	15,043	14,807	15,023	14,773
Basic income per share: (in Dollars per share)	$ 0.13	$ 0.07	$ 0.13	$ 0.31
Diluted income per share: (in Dollars per share)	$ 0.13	$ 0.07	$ 0.13	$ 0.31