STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Mar. 31, 2013

STOCKHOLDERS' EQUITY

Summary of stock option activity

	2013				2012				2011
	Number of Shares		Weighted Average Exercise Price		Number of Shares		Weighted Average Exercise Price		Number of Shares		Weighted Average Exercise Price
Options outstanding, beginning of year	376,331		$	55.10	472,446		$	55.77	613,934		$	47.37
Options granted	—		—		—		—		56,181		74.87
Options exercised	(50,505	)	42.75		(75,714	)	56.63		(197,669	)	35.12
Options canceled or expired	(10,664	)	65.72		(20,401	)	65.01		—		—
Options outstanding, end of year	315,162		$	56.72	376,331		$	55.10	472,446		$	55.77
Options exercisable, end of year	312,895		$	56.68	370,400		$	55.00	397,592		$	53.06
Options available for grant	284,000				292,000				301,732
Weighted average fair value per share of options granted during the year			$	—			$	—			$	26.21

Summary of certain data for options outstanding and exercisable by exercise price range

The following summarizes certain data for options outstanding and exercisable at March 31, 2013:

	Number of Shares	Range of Exercise Prices	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life
Options outstanding:	15,925	$11.58-$20.00	$	14.43	0.88
	14,400	$20.01-$30.00	28.50		1.46
	14,629	$30.01-$40.00	39.06		1.09
	38,800	$40.01-$50.00	44.73		1.61
	47,278	$50.01-$60.00	53.36		2.71
	127,949	$60.01-$70.00	64.08		4.89
	56,181	$70.01-$75.82	74.87		7.42
	315,162	$11.58-$75.82	$	56.72	4.08
Options exercisable:	15,925	$11.58-$20.00	$	14.43
	14,400	$20.01-$30.00	28.50
	14,629	$30.01-$40.00	39.06
	38,800	$40.01-$50.00	44.73
	47,278	$50.01-$60.00	53.36
	125,682	$60.01-$70.00	64.13
	56,181	$70.01-$75.82	74.87
	312,895	$11.58-$75.82	$	56.68

Summary of the restricted stock and stock unit activity

	2013				2012				2011
	Number of Shares		Weighted Average Exercise  Price		Number of Shares		Weighted Average Exercise Price		Number of Shares		Weighted Average Exercise Price
Unvested restricted stock and units outstanding, beginning of year	40,599		$	68.63	32,882		$	65.03	97,240		$	60.78
Granted	19,657		61.00		24,006		73.03		5,106		83.79
Vested	(17,463	)	68.08		(12,523	)	68.70		(69,464	)	60.45
Forfeited	(14,684	)	63.71		(3,766	)	65.07		—		—
Unvested restricted stock and units outstanding, end of year	28,109		$	66.20	40,599		$	68.63	32,882		$	65.03