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SHAREHOLDERS' EQUITY (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 05, 2017 | Jun. 27, 2021 | Jun. 28, 2020 | Apr. 22, 2009
Treasury Stock, Shares [Abstract] |  |  |  |
Repurchase of shares (in shares) |  | 0 |  |
Number of common stock shares available to be repurchased (in shares) |  | 848,425 |  |
Sale of Stock [Abstract] |  |  |  |
Proceeds from sale of common stock in ATM offering |  | $ 3,761,000 | $ 357,000 |
Amended 2007 Stock Purchase Plan [Member] |  |  |  |
Treasury Stock, Shares [Abstract] |  |  |  |
Number of common stock shares authorized to purchase (in shares) |  |  |  | 3,016,000
2017 ATM Offering [Member] |  |  |  |
Sale of Stock [Abstract] |  |  |  |
Aggregate offering price | $ 5,000,000 |  |  |
Sale of common stock in ATM offering (in shares) |  | 3,064,342 |  |
Proceeds from sale of common stock in ATM offering |  | $ 4,400,000 |  |
Percentage of offering fee in gross sales |  | 3.00% |  |
Expenses associated with ATM Offering |  | $ 131,000 |  |

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