Shareholders' Equity (Tables)

12 Months Ended

Mar. 31, 2015

Shareholders' Equity [Abstract]

Weighted-average assumptions used to value the options granted

We used the following weighted-average assumptions to value the options granted during the years ended March 31:

	2015			2014			2013
Expected life, in years		3.29			4.51			6.00
Risk-free interest rate		.74	%		1.36	%		1.15	%
Expected volatility		63.4	%		89.1	%		89.03	%
Expected dividend yield		0	%		0	%		0	%

Stock option activity

The following table summarizes the activity related to our stock options in fiscal 2013, 2014 and 2015:

	Number of shares			Weighted average exercise price		Weighted  average grant date  fair value		Aggregate  intrinsic value		Weighted average  remaining life in years
Balance at March 31, 2012		1,513,549		$	5.01			$	1,332,196		2.96
Options granted		136,604			4.26	$	3.12
Options exercised		(29,064	)		5.17				24,772
Options surrendered		(156,223	)		6.01
Balance at March 31, 2013		1,464,866		$	4.84			$	882,989		2.64
Options granted		682,296			3.54	$	2.36
Options exercised		(251,410	)		1.67				1,089,978
Options surrendered		(204,203	)		5.81
Balance at March 31, 2014		1,691,549		$	4.67			$	2,451,075		3.85
Options granted		135,070			4.73	$	1.26
Options exercised		(61,761	)		1.10				170,944
Options surrendered		(469,466	)		6.91
UPI Balance at March 31, 2015		1,295,392		$	4.03			$	0		3.91
Options converted from VSCI		955,693			7.07	$	4.75				6.62
Balance at March 31, 2015		2,251,085			5.32			$	0		5.06
Options exercisable at March 31, 2015		1,713,395		$	5.86			$	0		4.94

Restricted shares activity

The following table summarizes the activity related to our restricted stock in fiscal 2013, 2014 and 2015:

	Number of Shares			Weighted average grant date  fair value		Weighted average remaining life in years		Aggregate  intrinsic value
Balance at March 31, 2012		50,863		$	8.68		0.95	$	609,672
Shares granted		121,345			4.97
Shares vested		(34,151	)		6.56			$	309,653
Shares surrendered		(7,266	)	$	4.42
Balance at March 31, 2013		130,791		$	6.05		1.50	$	1,087,226
Shares granted		88,647			4.22
Shares vested		(38,510	)		5.69			$	304,148
Shares surrendered		(74,652	)	$	6.03
Balance at March 31, 2014		106,276		$	4.65		2.23	$	743,167
Shares granted		305,248			4.34
Shares vested		(82,060	)		4.41				185,957
Shares surrendered		(11,723	)		5.56
Balance at March 31, 2015		317,741		$	4.47		1.93	$	387,644