Recently Issued Accounting Pronouncements (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 24, 2017	Dec. 25, 2016	Dec. 24, 2017	Dec. 25, 2016	Mar. 26, 2017
Recently Issued Accounting Pronouncements
Provision for income taxes	$ 501,900	$ 843,100	$ 2,354,000	$ 1,936,200
Internal-use computer software	$ 4,200,000		$ 4,200,000		$ 4,300,000
Maximum
Recently Issued Accounting Pronouncements
Historical sales returns, as a percent of revenue	3.00%		3.00%
ASU 2016-09 | Adjustment
Recently Issued Accounting Pronouncements
Provision for income taxes			$ 40,000
Effective tax rate (as a percent)			0.40%