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STOCKHOLDERS' EQUITY (Details)
6 Months Ended 9 Months Ended 12 Months Ended 27 Months Ended 42 Months Ended
Dec. 31, 2016
$ / shares
Jun. 30, 2016
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
$ / shares
shares
Jun. 30, 2015
USD ($)
$ / shares
shares
Jun. 30, 2014
USD ($)
$ / shares
shares
Sep. 30, 2015
$ / shares
Jun. 30, 2016
USD ($)
$ / shares
shares
Dec. 09, 2015
USD ($)
Dec. 10, 2014
USD ($)
Dec. 12, 2013
USD ($)
Jun. 30, 2013
shares
Dec. 07, 2012
USD ($)
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Repurchasing Amount (in Dollars) | $     $ 313,000 $ 292,000 $ 289,000              
Adjustment to additional paid in capital from shares issued with a weighted average cost basis greater than the current fair value (in Dollars) | $     $ (43,000)                  
Number of options granted     0 0 0              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   2,000 2,000 22,000 22,000   2,000       29,000  
Options exercisable   2,000 2,000       2,000          
Weighted average exercise price, exercisable options (in Dollars per share) | $ / shares   $ 12.31 $ 12.31       $ 12.31          
Share Repurchase Plan - December 2012 [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Stock repurchase program, authorized amount (in Dollars) | $                       $ 2,750,000
Share Repurchase Renewal, December 2014 [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Stock repurchase program, authorized amount (in Dollars) | $                 $ 2,750,000      
Share Repurchase Renewal, December 2013 [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Stock repurchase program, authorized amount (in Dollars) | $                   $ 2,750,000    
Share Repurchase Renewal, December 2015 [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Stock repurchase program, authorized amount (in Dollars) | $               $ 2,750,000        
Stock Repurchase Program, Remaining Authorized Repurchase Amount (in Dollars) | $   $ 2,680,000 $ 2,680,000       $ 2,680,000          
Share Repurchase Plan, December 2012 and Renewal, December 2013, December 2014, and December 2015 [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Repurchasing Amount (in Dollars) | $             $ 1,067,000          
Number of shares repurchased             421,652          
Scenario, Forecast [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Monthly dividend (in Dollars per share) | $ / shares $ 0.0025                      
Common Class A [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Dividends, Cash (in Dollars) | $     $ 496,000 $ 800,000 $ 804,000              
Number of shares repurchased     177,998 95,251 93,351              
Repurchasing Amount (in Dollars) | $     $ 313,000 $ 292,000 $ 289,000              
Common Class C [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Dividends, Cash (in Dollars) | $     $ 78,000 $ 124,000 $ 124,000              
Number of shares converted       60 1,340              
Conversion ratio, shares issued as a result of stock conversion         1              
Monthly Dividends Paid [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share) | $ / shares   $ 0.0025       $ 0.005            
Employee [Member] | Common Class A [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Class A common stock granted     2,400                  
Class A common stock granted (in Dollars per share) | $ / shares     $ 2.66                  
Director [Member] | Common Class A [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Class A common stock granted     3,600 3,600 3,600              
Class A common stock granted (in Dollars per share) | $ / shares     $ 1.63 $ 3.24 $ 3.07              
Employees [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Options exercisable   2,000 2,000 22,000 22,000   2,000          
Weighted average exercise price, exercisable options (in Dollars per share) | $ / shares   $ 12.31 $ 12.31 $ 18.72 $ 18.72   $ 12.31          
1989 Plan [Member] | Common Class A [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Number of shares authorized under Stock Option Plan   1,600,000 1,600,000       1,600,000          
Award vesting period     6 months                  
Annual award vesting, percentage     20.00%                  
Stock Option Plan expiration     10 years                  
Number of options granted     0 0 0              
1997 Plan [Member] | Common Class A [Member]                        
STOCKHOLDERS' EQUITY (Details) [Line Items]                        
Number of shares authorized under Stock Option Plan   400,000 400,000       400,000          
Stock Option Plan expiration     10 years                  
Number of options granted     0 0 0              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   2,000 2,000       2,000