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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Concentration of Credit Risk (Details) - Concentration of Credit Risk [Member] $ in Thousands | 12 Months Ended
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Jun. 27, 2021 USD ($) Franchise Notes | Jun. 28, 2020 USD ($) Franchise
Concentration of Credit Risk [Abstract] |  |
Deposit insurance corporation (FDIC) limits | $ 250 |
Cash balances in excess of FDIC insurance coverage | $ 8,000 | $ 2,700
Number of franchisees had credit risk on notes receivable | Franchise | 5 | 5
Number of short term notes receivables | Notes | 6 |
Number of notes receivable | Notes | 1 |
Number of franchises | Franchise | 1 |
Note receivables from franchisees | $ 1,000 |
Weighted average interest rate of financed assets sale | 0.00% |

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- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
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