Note 2 - Summary of Significant Accounting Policies (Details) - Basic and Diluted Net Income per Share Computational Data (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basic and Diluted Net Income per Share Computational Data [Abstract]
Net income (in Dollars)	$ 10,494	$ (10,216)	$ (14,939)
Weighted average basic shares outstanding:
Common stock	38,656	35,315	34,141
Dilutive securities	2,576
Total	41,232	35,315	34,141