Note 7 - Net Income (loss) Per Share (Detail) - Calculation of Numerator and Denominator in Earnings 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
Numerator for basic and diluted net income (loss) per share:
Net income (loss) available to common stockholders (in Dollars)	$ (911)	$ 979	$ (1,648)	$ 1,277
Denominator for net income (loss) per share:
Basic and diluted —weighted average shares of common stock outstanding	7,752	5,687	7,566	5,605
Net income (loss) per share:
Basic and diluted (in Dollars per share)	$ (0.12)	$ 0.17	$ (0.22)	$ 0.23