Income Taxes (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Mar. 31, 2013
Income Taxes [Abstract]
Gross amount of unrecognized tax benefits	$ 568,800		$ 631,100
Net of indirect tax benefits	369,700		416,500
Amount of interest and penalties	(22,100)	17,800
Unrecognized tax benefits liability	291,400		309,000
Reconciliation of unrecognized tax benefits [Rollforward]
Beginning balance at March 31, 2013 of unrecognized tax benefit	631,100
Reversal related to statute expiration	(67,400)
Increases related to current period tax positions	5,100
Ending balance at June 30, 2013 of unrecognized tax benefits	$ 568,800