Employee Benefit Plans (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Employee Benefit Plans (Textual) [Abstract]
Employee benefit plans employer contributions	$ 889	$ 630	$ 479
Maximum percentage of salary deferment	75.00%
Maximum percentage of annual bonus deferment	100.00%
Deferred compensation liability	3,809	3,497
Net cash surrender value of life insurance policies for deferred compensation	3,728	2,959
Maximum percentage of gross payroll each employee Authorize withhold	10.00%
Percentage of matching contribution by employee	5.00%
Deferral Plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Employee benefit plans employer contributions	49	66	33
Voluntary Employee Stock Contribution plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Employee benefit plans employer contributions	$ 47	$ 47	$ 39