Note 14 - Net Income (Loss) Per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

14. Net income (loss) per share attributable to Common Stockholders

As described in Note 2, Summary of Significant Accounting Policies, the Company computes basic and diluted earnings (loss) per share using a methodology that gives effect to the impact of outstanding participating securities (the "two-class method"). As the years ended December 31, 2014, 2013 and 2012 resulted in net losses, there is no income allocation required under the two-class method or dilution attributed to weighted-average shares outstanding in the calculation of diluted loss per share.

The following Common Stock equivalents, presented on an as converted basis, were excluded from the calculation of net loss per share for the periods presented, due to their anti-dilutive effect (in thousands):

	Years Ended December 31,
	2014			2013		2012
Covertible preferred stock		7,581	(a)		4,254		4,254
Common stock warrants		660	(a)		660		660
Outstanding stock options		1,236			607		614
Convertible notes		243	(a)		243		-
		9,720			5,764		5,528

(a) These instruments were either exercised or converted to Common Stock during 2014.