Share-based Payments (Tables)

12 Months Ended

Mar. 31, 2015

Stock Options and Restricted Stock Awards [Abstract]

Summary of stock option transactions

The following is a summary of stock option activity during the year ended March 31, 2015:

	Number of Shares			Weighted Average Exercise Price
Outstanding at March 31, 2014		1,426,968		$	9.21
Granted		82,537		$	22.99
Exercised		(108,734	)	$	9.81
Cancelled		(11,517	)	$	10.32
Outstanding at March 31, 2015		1,389,254		$	9.97

Summary of options outstanding

The following table summarizes information about the options outstanding at March 31, 2015:

		Options Outstanding								Options Exercisable
Range of Exercise price		Shares		Weighted Average Exercise Price		Weighted Average Remaining Life In Years		Aggregate Intrinsic Value		Shares		Weighted Average Exercise Price		Aggregate Intrinsic Value
$	4.170 to $6.250		81,000	$	5.22		4.02	$	1,828,000		80,000	$	5.20	$	1,808,000
$	6.460 to $7.430		458,335		6.52		7.45		9,749,000		430,637		6.53		9,156,000
$	8.700 to $9.900		251,299		9.34		8.22		4,636,000		77,236		9.39		1,421,000
$	10.010 to $11.900		195,250		10.21		0.81		3,432,000		195,250		10.21		3,432,000
$	12.000 to $25.510		403,370	$	15.12		3.96		5,111,000		285,112	$	12.31		4,414,000
			1,389,254	$	9.97		5.44	$	24,756,000		1,068,235	$	8.85	$	20,231,000

Summary of changes in the status of non-vested stock options

The following is a summary of changes in the status of non-vested RS during the year ended March 31, 2015:

	Number of Shares			Weighted Average Grant Date Fair Value
Non-vested restricted stock at March 31, 2014		138,000		$	9.32
Restricted stock granted		95,645		$	24.21
Restricted stock vested		(50,402	)	$	10.51
Restricted stock cancelled		(1,800	)	$	9.32
Non-vested restricted stock at March 31, 2015		181,443		$	16.84