Shareholders' Equity (Detail Textuals 1) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended		0 Months Ended			1 Months Ended	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Aug. 01, 2011 Share Repurchase Plan	Nov. 01, 2010 Share Repurchase Plan	Nov. 08, 2006 Share Repurchase Plan	Oct. 31, 2008 Share Repurchase Plan	Mar. 31, 2014 Share Repurchase Plan	Mar. 31, 2013 Share Repurchase Plan
Stockholders Equity Note [Line Items]
Amount approved of share repurchase plan			$ 20,000,000	$ 20,000,000	$ 20,000,000	$ 20,000,000
Number of shares repurchased								397
Value of shares repurchased	(3,865,000)	(23,685,000)						3,900,000
Average cost of shares repurchased								$ 9.74
Value of remaining shares							$ 10,200,000