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Long-Term Debt (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 26, 2016
Apr. 01, 2018
Mar. 26, 2017
Mar. 27, 2016
Mar. 31, 2009
Jun. 30, 2004
Scheduled annual maturities of long-term debt            
2019   $ 27,300        
2020   2,300        
Total   29,600        
Term Loan, Wells Fargo Bank, National Association and SunTrust Bank            
Long-Term Debt            
Principal balance           $ 4,500,000
Weighted average interest rate (as a percent)     2.40% 2.21%    
Interest expense     $ 11,000 $ 43,900    
Term Loan, Baltimore County Economic Development Revolving Loan Fund            
Long-Term Debt            
Principal balance   29,600 56,300   $ 250,000  
Interest expense   900 $ 1,300 $ 2,000    
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            
Long-Term Debt            
Interest rate spread on variable rate basis (as a percent) 2.00%