Stock-Based Compensation (Tables)

12 Months Ended

Mar. 31, 2017

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

Schedule of major components of stock-based compensation expense

The major components of stock-based compensation expense are as follows (amounts in thousands):

	Fiscal year ended    March 31, 2017						Fiscal year ended    March 31, 2016						Fiscal year ended    March 31, 2015
	Stock Options		Restricted Stock		LTIPs		Stock Options		Restricted Stock		LTIPs		Stock Options		Restricted Stock		LTIPs
Cost of sales	$	21	$	634	$	729	$	81	$	617	$	720	$	233	$	269	$	1,075
Selling, general and administrative expenses	20		1,490		1,620		78		1,352		1,732		306		787		1,547
Research and development	1		26		179		4		23		167		13		3		279
	$	42	$	2,150	$	2,528	$	163	$	1,992	$	2,619	$	552	$	1,059	$	2,901

Schedule of employee stock option activity

Employee stock option activity for fiscal year 2017 is as follows:

	Options (in thousands)		Weighted- Average Exercise Price
Outstanding at March 31, 2016	1,254		$	7.63
Granted	—		—
Exercised	(204	)	5.55
Forfeited	—		—
Expired	(86	)	16.72
Outstanding at March 31, 2017	964		7.27
Exercisable at March 31, 2017	964		$	7.27
Remaining weighted average contractual life of options exercisable (years)			4.1
Remaining weighted average contractual life of options outstanding (years)			4.1

Summary of the weighted average assumptions used in the Black-Scholes valuation model to value stock option grants

Amounts included in the following table are in thousands, except weighted average fair value and weighted average exercise price:

	Fiscal Years Ended March 31,
	2017		2016		2015
Weighted average grant-date fair value of non-vested shares	$	—	$	2.72	$	2.73
Weighted average grant-date fair value of shares
Granted	—		—		—
Vested	2.72		2.73		3.50
Forfeited	2.72		2.81		3.25
Total estimated fair value of shares vested	223		548		1,000
Intrinsic value
Stock options exercised	890		—		—
Options outstanding	5,272
Options currently exercisable	5,272
Total unrecognized compensation cost, net of estimated forfeitures, non-vested options	—
Weighted-average period of recognition for unrecognized compensation cost (in years)	N/A
Weighted average exercise price of stock options expected to vest	N/A

Schedule of restricted stock activity

Restricted stock unit activity for fiscal year 2017 is as follows (amounts in thousands except fair value):

	Shares		Weighted- average Fair Value on Grant Date
Non-vested restricted stock at March 31, 2016	1,430		$	3.51
Granted	386		4.91
Vested	(409	)	3.18
Forfeited	(25	)	3.39
Non-vested restricted stock at March 31, 2017	1,382		$	4.00