Note 2 - Summary of Significant Accounting Policies (Details) - Calculation of EPS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Calculation of EPS [Abstract]
Net income (loss) - basic and diluted	$ 853		$ 297		$ 537		$ 755		$ (3,261)		$ (2,222)		$ 1,011		$ 992		$ 2,442	$ (3,480)	$ 3,614
Weighted average shares outstanding																	34,232	25,973	25,973
Net income (loss) per share – basic	$ 0.02	[1]	$ 0.01	[1]	$ 0.02	[1]	$ 0.03	[1]	$ (0.13)	[1]	$ (0.09)	[1]	$ 0.04	[1]	$ 0.04	[1]	$ 0.07	$ (0.13)	$ 0.14
Weighted average shares outstanding (including dilutive CSEs)																	34,591	25,973	25,992
Net income (loss) per share – diluted	$ 0.02	[1]	$ 0.01	[1]	$ 0.02	[1]	$ 0.03	[1]	$ (0.13)	[1]	$ (0.09)	[1]	$ 0.04	[1]	$ 0.04	[1]	$ 0.07	$ (0.13)	$ 0.14

[1] Quarterly net income (loss) per share does not add to full year net income (loss) per share due to rounding.