Summary of Significant Accounting Policies - FY, Allowance for Doubtful Accounts and Inventory (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 24, 2017	Sep. 24, 2017	Jun. 25, 2017	Mar. 31, 2019	Apr. 01, 2018	Mar. 26, 2017
Fiscal Year
Fiscal year duration	91 days	91 days	91 days	91 days	98 days	91 days	91 days	91 days	364 days	371 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	$ 5,870,600				$ 5,739,700				$ 5,870,600	$ 5,739,700
Minimum
Fiscal Year
Fiscal year duration									364 days
Maximum
Fiscal Year
Fiscal year duration									371 days