Warrants

The Company's outstanding warrants are exercisable for common stock at any time during their respective terms. During the year ended December 31, 2012, 6,066 warrants were exercised in a net share transaction to acquire 3,308 shares of the Company's common stock. No warrants were exercised during 2013.

At December 31, 2013, the following warrants were issued and outstanding:



Issue Date	Shares Subject to warrants	Exercise Price per Share		Expiration
July 17, 2007	2,384	$	12.45	February 9, 2016
September 28, 2007	72,727	8.25		September 28, 2017