Summary of Significant Accounting Policies - FY, Allowance for Doubtful Accounts and Inventory (Details) - USD ($)	3 Months Ended								12 Months Ended
	Apr. 01, 2018	Dec. 24, 2017	Sep. 24, 2017	Jun. 25, 2017	Mar. 26, 2017	Dec. 25, 2016	Sep. 25, 2016	Jun. 26, 2016	Apr. 01, 2018	Mar. 26, 2017	Mar. 27, 2016
Fiscal Year
Fiscal year duration	98 days	91 days	91 days	91 days	91 days	91 days	91 days	91 days	371 days	364 days	364 days
Allowance for Doubtful Accounts
Payment period from large majority of commercial customers									30 days
Product Inventory
Reserves for excess or obsolescence inventory	$ 5,739,700				$ 6,360,600				$ 5,739,700	$ 6,360,600
Minimum
Fiscal Year
Fiscal year duration									364 days
Maximum
Fiscal Year
Fiscal year duration									371 days