Stock-Based Compensation (Tables)

12 Months Ended

Mar. 31, 2013

Stock-Based Compensation [Abstract]

Schedule Of Valuation Assumptions

	Year Ended March 31
	2013		2012		2011
Risk-free interest rate	0.7	%	1.0	%	1.6	%
Expected volatility	38	%	42	%	56	%
Expected life (years)	4.1		4.1		4.2
Dividend yield	0	%	0	%	0	%

Summary Of Options Outstanding

Ranges of Exercise Prices	Number Outstanding	Weighted Average Exercise Price		Weighted Remaining Contractual Life (years)
$  15.08 - 16.33	27,000	$	16.24	2.8
31.27 - 42.45	9,000		37.00	6.0
51.04 - 58.27	13,000	54.76		7.5
	49,000	$	30.27	4.6

Summary Of Stock Options And Warrants

	Option Shares Reserved		Options Outstanding		Weighted Average Option Exercise Price		Warrants Outstanding		Weighted Average Warrant Exercise Price
At March 31, 2010	170,230		254,500		$	17.28	10,000		$	16.28
Granted	(4,000	)	4,000		$	42.45	-			-
Exercised	-		(83,500	)	$	9.56	-		-
At March 31, 2011	166,230		175,000		$	21.54	10,000		$	16.28
Granted	(4,000	)	4,000		$	58.25	-			-
Exercised	-		(70,000	)	$	16.93	-		-
At March 31, 2012	162,230		109,000		$	25.85	10,000		$	16.28
Granted	(4,000	)	4,000		$	54.11	-			-
Exercised	-		(64,000	)	$	24.23	-		-
Terminated	-		-		$	-	(6,000	)		7.35
At March 31, 2013	158,230		49,000		$	30.27	4,000		$	29.69