Note 4 - Earnings per Share (Detail) - Basic and Diluted Net Income Per Share Calculation (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net (loss) / income (in Dollars)	$ (120)	$ 60
Shares used to compute basic net (loss) / income per share	8,554	8,505
Stock options		297
Shares used to compute diluted net (loss) / income per share	8,554	8,802
Basic net (loss) / income per share (in Dollars per share)	$ (0.01)	$ 0.01
Diluted net (loss) / income per share (in Dollars per share)	$ (0.01)	$ 0.01