Stockholders' Equity

6 Months Ended

Jun. 30, 2014

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Exercise of options

For the six months ended June 30, 2014, 61,331 shares were exercised at a weighted-average exercise price of $1.01 per share, for total cash proceeds of less than $0.1 million.

Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income, net of tax, and other comprehensive income are summarized as follows (in thousands):

	Net Unrealized Gains on Marketable Securities			Accumulated Other Comprehensive Income
Balance at December 31, 2013	$	(32	)	$	(32	)
Other comprehensive income	405			405
Amounts reclassified to interest income	1			1
Balance at June 30, 2014	$	374		$	374

Warrants

The Company's outstanding warrants are exercisable for common stock at any time during their respective terms. As of June 30, 2014, the following warrants remain outstanding:

June 30, 2014
Issue Date	Shares Subject to warrants	Exercise Price per Share		Expiration
July 17, 2007	2,834	$	12.45	February 9, 2016
September 28, 2007	72,727	$	8.25	September 28, 2017