7. Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Shareholders Equity Tables

Options and Warrants assumptions used

	Year Ended December 31,
	2015		2014		2013
Expected life (years)		4.21		4.22		5.41
Risk-free interest rate		1.35%		1.43%		0.73%
Volatility		51%		55%		80%
Expected dividend yield		–		–		–

Stock option activity

Stock option activity for the year ended December 31, 2015 for stock options under the 2006 and 1997 plans is as follows:

	Number of Shares (in thousands)			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term
Options outstanding at the beginning of period		10,828		$	4.05	N/A
Granted		1,965			6.11	N/A
Exercised		(1,233	)		1.39	N/A
Forfeited/Expired		(332	)		5.43	N/A
Options outstanding at the end of period		11,228		$	4.66	5.55 years
Options exercisable at the end of period		6,132		$	3.49	4.87 years