Adoption of ASU 2014-09, "Revenue from Contracts with Customers", Cumulative Adjustment to Retained Earnings (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 23, 2018 USD ($) $ / shares shares	Dec. 23, 2018 USD ($) Source $ / shares shares	Jun. 24, 2018 USD ($) $ / shares shares	Dec. 24, 2017 USD ($)	Jun. 25, 2017 USD ($)
CURRENT ASSETS [Abstract]
Cash and cash equivalents	$ 1,906	$ 1,906	$ 1,386	$ 1,428	$ 451
Accounts receivable, less allowance for bad debts of $164 and $158, respectively	1,520	1,520	1,518
Other receivable	0	0	300
Notes receivable	798	798	712
Inventories	6	6	6
Income tax receivable	0	0	5
Property held for sale	496	496	539
Deferred contract charges	28	28	0
Prepaid expenses and other	410	410	273
Total current assets	5,164	5,164	4,739
LONG-TERM ASSETS [Abstract]
Property, plant and equipment, net	1,300	1,300	1,510
Intangible assets definite-lived, net	203	203	212
Long-term notes receivable	1,017	1,017	803
Deferred tax asset, net	3,334	3,334	3,479
Long term deferred contract charges	189	189	0
Deposits and other	243	243	243
Total assets	11,450	11,450	10,986
CURRENT LIABILITIES [Abstract]
Accounts payable - trade	285	285	421
Accounts payable - lease termination impairments	488	488	353
Accrued expenses	914	914	1,109
Deferred rent	37	37	32
Deferred revenues	267	267	65
Total current liabilities	1,991	1,991	1,980
LONG-TERM LIABILITIES [Abstract]
Convertible notes	1,574	1,574	1,562
Deferred rent, net of current portion	415	415	433
Deferred revenues, net of current portion	2,088	2,088	670
Other long-term liabilities	51	51	42
Total liabilities	6,119	6,119	4,687
COMMITMENTS AND CONTINGENCIES (SEE NOTE 3)
SHAREHOLDERS' EQUITY [Abstract]
Common stock	222	222	222
Additional paid-in capital	33,520	33,520	33,206
Accumulated deficit	(3,775)	(3,775)	(2,493)
Treasury stock at cost Shares in treasury: 7,119,204	(24,636)	(24,636)	(24,636)
Total shareholders' equity	5,331	5,331	6,299
Total liabilities and shareholders' equity	11,450	11,450	10,986
Accounts receivable, allowance for bad debts	$ 164	$ 164	$ 158
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized (in shares) | shares	26,000,000	26,000,000	26,000,000
Common stock, shares issued (in shares) | shares	22,190,515	22,190,515	22,166,674
Common stock, shares outstanding (in shares) | shares	15,071,311	15,071,311	15,047,470
Treasury stock at cost (in shares) | shares	7,119,204	7,119,204	7,119,204
ASU 2014-09 [Member]
Adoption of Cumulative Effect on Change in Accounting Principle [Abstract]
Cumulative adjustment recorded as reduction to retained earnings			$ (1,622)
Increase in revenue	$ 321	$ 771
Increase in pre-tax income	129	$ 160
Number of largest sources of revenue | Source		2
ASU 2014-09 [Member] | Domestic Franchise and Renewal Fees [Member]
Adoption of Cumulative Effect on Change in Accounting Principle [Abstract]
Cumulative adjustment recorded as reduction to retained earnings			(1,300)
ASU 2014-09 [Member] | Domestic Area Development Fees [Member]
Adoption of Cumulative Effect on Change in Accounting Principle [Abstract]
Cumulative adjustment recorded as reduction to retained earnings			(200)
ASU 2014-09 [Member] | International Development and Franchise Master License Fees [Member]
Adoption of Cumulative Effect on Change in Accounting Principle [Abstract]
Cumulative adjustment recorded as reduction to retained earnings			(300)
Deferral of contract-related expenses			200
ASU 2014-09 [Member] | Adjustment [Member]
CURRENT ASSETS [Abstract]
Cash and cash equivalents	0	$ 0	0
Accounts receivable, less allowance for bad debts of $164 and $158, respectively	0	0	0
Other receivable	0	0	0
Notes receivable	0	0	0
Inventories	0	0	0
Income tax receivable	0	0	0
Property held for sale	0	0	0
Deferred contract charges	(28)	(28)	10
Prepaid expenses and other	47	47	0
Total current assets	19	19	10
LONG-TERM ASSETS [Abstract]
Property, plant and equipment, net	0	0	0
Intangible assets definite-lived, net	0	0	0
Long-term notes receivable	0	0	0
Deferred tax asset, net	0	0	0
Long term deferred contract charges	(189)	(189)	182
Deposits and other	0	0	0
Total assets	(170)	(170)	192
CURRENT LIABILITIES [Abstract]
Accounts payable - trade	0	0	0
Accounts payable - lease termination impairments	0	0	0
Accrued expenses	(3)	(3)	(4)
Deferred rent	0	0	0
Deferred revenues	(114)	(114)	243
Total current liabilities	(117)	(117)	239
LONG-TERM LIABILITIES [Abstract]
Convertible notes	0	0	0
Deferred rent, net of current portion	0	0	0
Deferred revenues, net of current portion	(1,515)	(1,515)	1,575
Other long-term liabilities	0	0	0
Total liabilities	(1,632)	(1,632)	1,814
COMMITMENTS AND CONTINGENCIES (SEE NOTE 3)
SHAREHOLDERS' EQUITY [Abstract]
Common stock	0	0	0
Additional paid-in capital	0	0	0
Accumulated deficit	1,462	1,462	(1,622)
Treasury stock at cost Shares in treasury: 7,119,204	0	0	0
Total shareholders' equity	1,462	1,462	(1,622)
Total liabilities and shareholders' equity	(170)	(170)	192
ASU 2014-09 [Member] | Without Adjustment [Member]
CURRENT ASSETS [Abstract]
Cash and cash equivalents	1,906	1,906	1,386
Accounts receivable, less allowance for bad debts of $164 and $158, respectively	1,520	1,520	1,518
Other receivable	0	0	300
Notes receivable	798	798	712
Inventories	6	6	6
Income tax receivable	0	0	5
Property held for sale	496	496	539
Deferred contract charges	0	0	10
Prepaid expenses and other	457	457	273
Total current assets	5,183	5,183	4,749
LONG-TERM ASSETS [Abstract]
Property, plant and equipment, net	1,300	1,300	1,510
Intangible assets definite-lived, net	203	203	212
Long-term notes receivable	1,017	1,017	803
Deferred tax asset, net	3,334	3,334	3,479
Long term deferred contract charges	0	0	182
Deposits and other	243	243	243
Total assets	11,280	11,280	11,178
CURRENT LIABILITIES [Abstract]
Accounts payable - trade	285	285	421
Accounts payable - lease termination impairments	488	488	353
Accrued expenses	911	911	1,105
Deferred rent	37	37	32
Deferred revenues	153	153	308
Total current liabilities	1,874	1,874	2,219
LONG-TERM LIABILITIES [Abstract]
Convertible notes	1,574	1,574	1,562
Deferred rent, net of current portion	415	415	433
Deferred revenues, net of current portion	573	573	2,245
Other long-term liabilities	51	51	42
Total liabilities	4,487	4,487	6,501
COMMITMENTS AND CONTINGENCIES (SEE NOTE 3)
SHAREHOLDERS' EQUITY [Abstract]
Common stock	222	222	222
Additional paid-in capital	33,520	33,520	33,206
Accumulated deficit	(2,313)	(2,313)	(4,115)
Treasury stock at cost Shares in treasury: 7,119,204	(24,636)	(24,636)	(24,636)
Total shareholders' equity	6,793	6,793	4,677
Total liabilities and shareholders' equity	$ 11,280	$ 11,280	$ 11,178