Stock-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2016

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

Summary of Stock-Based Compensation Expense

The Company accounts for its stock-based compensation at fair value. The following table summarizes stock-based compensation expense by financial statement line item for the three and six months ended September 30, 2016 and 2015 (in thousands):

	Three months ended September 30,				Six months ended September 30,
	2016		2015		2016		2015
Cost of revenues	$	49	$	61	$	99	$	158
Research and development	62		87		92		283
Selling, general and administrative	542		558		1,462		1,393
Total	$	653	$	706	$	1,653	$	1,834

Schedule of Share-Based Compensation Valuation Assumptions

The weighted average assumptions used in the Black Scholes valuation model for stock options granted during the six months ended September 30, 2016 are as follows:

	Three months ended September 30,			Six months ended September 30,
	2016		2015	2016		2015
Expected volatility	67.6	%	N/A	67.6	%	N/A
Risk-free interest rate	1.3	%	N/A	1.3	%	N/A
Expected life (years)	5.7		N/A	5.7		N/A
Dividend yield	None		N/A	None		N/A