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STOCK BASED COMPENSATION PLANS, Information on Options Outstanding and Options Exercisable (Details) - Stock Options [Member] - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 28, 2020
Jun. 30, 2019
Options Outstanding [Abstract]    
Options outstanding (in shares) 206,750  
Weighted-average remaining contractual life 3 years 4 months 24 days  
Weighted-average exercise price (in dollars per share) $ 4.96  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 206,750  
Weighted-average exercise price (in dollars per share) $ 4.96  
Unvested options (in shares) 0  
Stock compensation expense $ 0 $ 35
$2.36 - 2.75 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) $ 2.36  
Range of exercise prices, upper range (in dollars per shares) $ 2.75  
Options outstanding (in shares) 40,000  
Weighted-average remaining contractual life 1 year  
Weighted-average exercise price (in dollars per share) $ 2.71  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 40,000  
Weighted-average exercise price (in dollars per share) $ 2.71  
$2.76 - 3.30 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) 2.76  
Range of exercise prices, upper range (in dollars per shares) $ 3.30  
Options outstanding (in shares) 55,000  
Weighted-average remaining contractual life 2 years  
Weighted-average exercise price (in dollars per share) $ 3.11  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 55,000  
Weighted-average exercise price (in dollars per share) $ 3.11  
$3.31 - 3.95 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) 3.31  
Range of exercise prices, upper range (in dollars per shares) $ 3.95  
Options outstanding (in shares) 50,000  
Weighted-average remaining contractual life 6 years  
Weighted-average exercise price (in dollars per share) $ 3.95  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 50,000  
Weighted-average exercise price (in dollars per share) $ 3.95  
$5.51 - 5.74 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) 5.51  
Range of exercise prices, upper range (in dollars per shares) $ 5.74  
Options outstanding (in shares) 8,664  
Weighted-average remaining contractual life 3 years  
Weighted-average exercise price (in dollars per share) $ 5.74  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 8,664  
Weighted-average exercise price (in dollars per share) $ 5.74  
$5.95 - 6.25 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) 5.95  
Range of exercise prices, upper range (in dollars per shares) $ 6.25  
Options outstanding (in shares) 28,800  
Weighted-average remaining contractual life 4 years  
Weighted-average exercise price (in dollars per share) $ 6.23  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 28,800  
Weighted-average exercise price (in dollars per share) $ 6.23  
$6.26 - 13.11 [Member]    
Options Outstanding [Abstract]    
Range of exercise prices, lower range (in dollars per shares) 6.26  
Range of exercise prices, upper range (in dollars per shares) $ 13.11  
Options outstanding (in shares) 24,286  
Weighted-average remaining contractual life 5 years  
Weighted-average exercise price (in dollars per share) $ 13.11  
Options Exercisable [Abstract]    
Shares exercisable (in shares) 24,286  
Weighted-average exercise price (in dollars per share) $ 13.11