Note H - Accounts and Other Receivables, Net - Summary of Accounts and Other Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Mar. 25, 2018
Accounts receivable, gross, current	$ 15,586	$ 10,758
Less: allowance for doubtful accounts	612	585	$ 468
Accounts and other receivables, net	14,974	10,173
Branded Product Sales [Member]
Accounts receivable, gross, current	9,222	7,432
Franchise and License Royalties [Member]
Accounts receivable, gross, current	4,785	2,661
Other Receivables [Member]
Accounts receivable, gross, current	$ 1,579	$ 665