Consolidated Statements of Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Sep. 23, 2018	Sep. 24, 2017		Sep. 23, 2018		Sep. 24, 2017
REVENUES
Revenues	$ 29,330	$ 31,471	[1]	$ 59,498	[1]	$ 62,274	[1]
COSTS AND EXPENSES
Cost of sales	15,160	17,906		30,606		35,316
Restaurant operating expenses	1,141	1,105		2,051		2,009
Depreciation and amortization	339	367		684		735
General and administrative expenses	3,438	3,359		7,323		7,030
Advertising fund expense (Note B)	772	0		1,267
Total costs and expenses	20,850	22,737		41,931		45,090
Income from operations	8,480	8,734		17,567		17,184
Interest expense	(2,651)	(3,663)		(5,301)		(7,326)
Interest income	115	35		176		70
Other income, net	519	21		540		42
Income before provision for income taxes	6,463	5,127		12,982		9,970
Provision for income taxes	1,979	2,007		3,703		3,928
Net income	$ 4,484	$ 3,120		$ 9,279		$ 6,042
PER SHARE INFORMATION
Basic (in shares)	4,188,000	4,179,000		4,187,000		4,178,000
Diluted (in shares)	4,231,000	4,212,000		4,229,000		4,213,000
Basic (in dollars per share)	$ 1.07	$ 0.75		$ 2.22		$ 1.45
Diluted (in dollars per share)	1.06	0.74		2.19		1.43
Dividends declared per share (in dollars per share)	$ 0.25	$ 0		$ 0.50
Product [Member]
REVENUES
Revenues	$ 21,573	$ 24,392	[1]	$ 42,044	[1]	$ 46,622	[1]
License [Member]
REVENUES
Revenues	5,746	5,764	[1]	13,844	[1]	13,165	[1]
Franchise Fees and Royalties [Member]
REVENUES
Revenues	1,239	1,315	[1]	2,343	[1]	2,487	[1]
Advertising Fund Revenue [Member]
REVENUES
Revenues	$ 772		[1]	$ 1,267	[1]		[1]

[1] As disclosed in Note B, prior period amounts have not been adjusted under the modified retrospective method of adoption of ASC 606.