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STOCKHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
Dec. 05, 2017
Dec. 06, 2016
Dec. 09, 2015
Dec. 10, 2014
Dec. 12, 2013
Dec. 07, 2012
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Repurchasing Amount   $ 2 $ 14              
Options outstanding (in Shares)   4,000                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares)   4,000                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 7.53                
Number of options exercised (in Shares)   0 0              
Number of options forfeited (in Shares)   0 0              
Number of options granted (in Shares)   0 0              
Share-based Compensation   $ 2 $ 0              
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options   $ 0 $ 0              
Monthly Dividends Paid [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)   $ 0.0025   $ 0.0025            
Scenario, Forecast [Member] | Monthly Dividend Authorized [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Monthly Dividend Declared (in Dollars per share) $ 0.0025                  
Common Class A [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Number of shares repurchased (in Shares)   1,000 9,199              
Repurchasing Amount   $ 2 $ 14              
Share Repurchase Renewal, December 2014 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount               $ 2,750    
Share Repurchase Renewal, December 2015 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount             $ 2,750      
Share Repurchase Renewal, December 2017 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount         $ 2,750          
Share Repurchase Renewal, December 2016 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount           $ 2,750        
Share Repurchase Renewal, December 2013 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount                 $ 2,750  
Share Repurchase Plan - December 2012 [Member]                    
STOCKHOLDERS' EQUITY (Details) [Line Items]                    
Stock repurchase program, authorized amount                   $ 2,750