Stock-Based Compensation (Tables)

9 Months Ended

Dec. 31, 2015

Disclosure Of Compensation Related Costs Sharebased 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 nine months ended December 31, 2015 and 2014 (in thousands):

	Three months ended December 31,				Nine months ended December 31,
	2015		2014		2015		2014
Cost of revenues	$	55	$	186	$	213	$	533
Research and development		89		419		373		1,418
Selling, general and administrative		564		916		1,956		2,669
Total	$	708	$	1,521	$	2,542	$	4,620

Schedule of Weighted Average Assumptions used in Black-Scholes Valuation Model for Stock Options Granted

The weighted average assumptions used in the Black-Scholes valuation model for stock options granted during the three and nine months ended December 31, 2015 and 2014 are as follows:

	Three months ended December 31,		Nine months ended December 31,
	2015	2014	2015	2014
Expected volatility	N/A	N/A	N/A		85.5	%
Risk-free interest rate	N/A	N/A	N/A		1.9	%
Expected life (years)	N/A	N/A	N/A		5.8
Dividend yield	None	None	None	None