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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 27, 2024
Jun. 29, 2023
Allowance for doubtful accounts for accounts receivable, current $ 318 $ 283
Accumulated depreciation of rental investment property $ 15,246 $ 14,439
Common stock, par value $ 0.01  
Treasury Stock, Shares 117,900 117,900
Class A Common Stock [Member]    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 2,597,426 2,597,426
Common stock, shares outstanding 2,597,426 2,597,426
Common Stock, Non-Cumulative Voting Rights of One Vote Per Share [Member]    
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 17,000,000 17,000,000
Common stock, shares issued 9,123,938 9,076,326