Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)	12 Months Ended
	Mar. 26, 2017	Mar. 27, 2016	Mar. 29, 2015	Mar. 26, 2017	Mar. 27, 2016
Income Taxes
Gross amount of unrecognized tax benefits	$ 290,400	$ 394,400	$ 1,665,000	$ 204,500	$ 290,400
Unrecognized tax benefits, net of federal benefit	147,800	188,800
Amount of interest and penalties expense (benefit) related to tax uncertainties recognized, net of federal expense/benefit	(10,000)	16,600	(31,600)
Cumulative amount of interest and penalties related to tax uncertainties, net of federal expense/benefit				314,296	$ 399,800
Net unrecognized tax benefits, inclusive of indirect tax benefits and deferred tax benefits	147,800
Associated penalties and interest of net unrecognized tax benefits	314,300
Unrecognized tax benefits that would impact effective tax rate				$ 462,100
Reconciliation of unrecognized tax benefit amounts
Beginning balance of unrecognized tax benefit	290,400	394,400	1,665,000
Decrease due to reclassification to income tax payable			(1,189,000)
Increases related to current period tax positions	3,100	3,800	10,600
Reductions as a result of a lapse in the applicable statute of limitations	(89,000)	(107,800)	(92,200)
Ending balance of unrecognized tax benefits	$ 204,500	$ 290,400	$ 394,400