Employee Stock Purchase Plan

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Employee Stock Purchase Plan

Share-based Compensation

The Company included the following amounts for share-based compensation awards in the unaudited condensed consolidated statements of operations (in thousands):

	Three Months Ended March 31,
	2015		2014
Cost of revenues (1)	$	21	$	(30	)
Research and development	215		47
Sales and marketing	40		79
General and administrative	514		381
Totals	$	790	$	477

(1) Negative expense resulted from a change in the estimated forfeiture rates during the first quarter of 2014.

Employee Stock Purchase Plan

The Company’s 2000 Employee Stock Purchase Plan (the “ESPP”) permits eligible employees to purchase newly issued shares of the Company's common stock, at a price equal to 85% of the lower of the fair market value on (i) the first day of the offering period or (ii) the last day of each six-month purchase period, through payroll deductions of up to 10% of their annual cash compensation.

The Company terminated the ESPP in 2012 but reinstated the program effective August 16, 2014. Under the reinstated ESPP, the Company is authorized to issue 1,500,132 shares of common stock purchased by eligible employees under the plan.

During the three months ended March 31, 2015, the Company recognized $0.1 million of stock-based compensation expense related to the ESPP.