Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 26, 2017	Mar. 27, 2016	Mar. 29, 2015
Cash flows from operating activities:
Net income	$ 7,485,000	$ 6,096,000	$ 11,703,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,297,000	1,255,000	1,253,000
Amortization of bond premium		64,000	164,000
Gain on sale of marketable equity securities		(26,000)
Gain on sale of property and equipment		(18,000)
Amortization of debt issuance costs	1,209,000	1,185,000	66,000
Share-based compensation expense	582,000	722,000	859,000
Income tax benefit on stock option exercises	659,000
Provision for doubtful accounts	53,000	38,000	23,000
Impairment charge – long-term investment		100,000
Deferred income taxes	101,000	(13,000)	111,000
Changes in operating assets and liabilities:
Accounts and other receivables, net	(280,000)	740,000	(2,417,000)
Insurance proceeds received for business interruption claim			718,000
Inventories	108,000	135,000	125,000
Prepaid expenses and other current assets	250,000	3,189,000	(1,403,000)
Other assets	(189,000)	138,000	181,000
Accounts payable, accrued expenses and other current liabilities	(673,000)	(293,000)	1,779,000
Deferred franchise fees	(39,000)	(141,000)	44,000
Other liabilities	(151,000)	(691,000)	79,000
Net cash provided by operating activities	10,412,000	12,480,000	13,285,000
Cash flows from investing activities:
Proceeds from sales and maturities of available-for-sale securities		10,868,000	8,020,000
Proceeds from disposal of property and equipment		133,000
Purchase of property and equipment	(1,128,000)	(1,125,000)	(1,538,000)
Purchase of available-for-sale securities		(3,887,000)	(4,258,000)
Net cash (used in) provided by investing activities	(1,128,000)	5,989,000	2,224,000
Cash flows from financing activities:
Proceeds from issuance of long-term debt			135,000,000
Debt issuance costs		(60,000)	(5,926,000)
Dividends paid to stockholders	(375,000)	(375,000)	(115,110,000)
Repurchase of treasury stock	(1,272,000)	(19,231,000)	(1,916,000)
Proceeds from the exercise of stock options	44,000	89,000	880,000
Income tax benefit on stock option exercises		228,000	4,572,000
Payments of withholding tax on net share settlement of share-based compensation plans	(994,000)	(285,000)	(3,693,000)
Net cash (used in) provided by financing activities	(2,597,000)	(19,634,000)	13,807,000
Net increase (decrease) in cash and cash equivalents	6,687,000	(1,165,000)	29,316,000
Cash and cash equivalents, beginning of year	50,228,000	51,393,000	22,077,000
Cash and cash equivalents, end of year	56,915,000	50,228,000	51,393,000
Interest	13,500,000	13,688,000
Income taxes	$ 4,049,000	$ 848,000	$ 4,545,000