Long-Term Debt (Details) - USD ($)		12 Months Ended
	Jun. 23, 2016	Mar. 26, 2017	Mar. 27, 2016	Mar. 29, 2015	Mar. 31, 2009	Jun. 30, 2004
Scheduled annual maturities of long-term debt
2018		$ 26,700
2019		27,300
2020		2,300
Total		$ 56,300
Term Loan, Wells Fargo Bank, National Association and SunTrust Bank
Debt Instrument [Line Items]
Principal balance			$ 1,875,000			$ 4,500,000
Weighted average interest rate (as a percent)		2.40%	2.21%	2.19%
Interest expense		$ 11,000	$ 43,900	$ 48,400
Term Loan, Baltimore County Economic Development Revolving Loan Fund
Debt Instrument [Line Items]
Principal balance		56,300	82,600		$ 250,000
Interest expense		1,300	$ 2,000	$ 2,400
Monthly principal and interest payments		$ 2,300
Interest rate (as a percent)		2.00%
LIBOR | Term Loan, Wells Fargo Bank, National Association and SunTrust Bank
Debt Instrument [Line Items]
Interest rate spread on variable rate basis (as a percent)	2.00%