Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)	6 Months Ended		12 Months Ended
	Sep. 25, 2016	Sep. 27, 2015	Mar. 27, 2016	Sep. 25, 2016	Mar. 27, 2016
Income Taxes
Gross amount of unrecognized tax benefits	$ 290,400		$ 290,400	$ 291,700	$ 290,400
Unrecognized tax benefits, net of federal benefit	192,500		188,800
Amount of interest and penalties expense (benefit) related to tax uncertainties recognized, net of federal expense/benefit	27,000	$ 31,800
Unrecognized tax benefits that would impact effective tax rate				$ 364,000	$ 339,800
Reconciliation of unrecognized tax benefit amounts
Beginning balance of unrecognized tax benefit	290,400
Increases related to current period tax positions	1,300
Ending balance of unrecognized tax benefits	$ 291,700		$ 290,400