Commitments and Contingencies (Details Textual) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Jun. 06, 2013 Wage and Hour Putative Class Action Lawsuit [Member] Pending Litigation [Member]
Commitments and Contingencies Disclosure [Abstract]
Operating leases, renewal option period (for periods up to 10 years)	10 years
Operating leases, rental expense	$ 2,500,000	$ 2,400,000	$ 3,500,000
Asset retirement obligation, current	25,200	0
Asset retirement obligation, noncurrent	400,000	500,000
Loss Contingencies [Line Items]
Loss contingency, proposed settlement amount				$ 1,500,000