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SHAREHOLDERS’ EQUITY (Details Narrative) - USD ($)
1 Months Ended
May 24, 2019
Dec. 13, 2018
Dec. 31, 2019
Jul. 31, 2019
Jun. 30, 2019
Dec. 31, 2017
Jun. 30, 2020
Apr. 04, 2014
Dec. 31, 2007
Subsidiary or Equity Method Investee [Line Items]                  
Common stock, shares authorized     20,000,000       20,000,000    
Common stock, par value     $ 0.01       $ 0.01    
Common stock, shares outstanding     10,094,322       10,094,322    
Treasury stock, common, shares     59,311       59,311    
Common stock, shares issued     10,153,633       10,153,633    
Stock Repurchase Program, Authorized Amount               $ 1,000,000 $ 5,000,000
Non-Employee Directors [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Number of shares distributed from treasury to non-employee directors during period         2,500        
Since Inception [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Stock Repurchased During Period, Shares           61,811      
Stock Repurchased During Period, Value           $ 932,000      
Engineering Expense           $ 15      
Restricted Stock Unit Awards [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 500 2,000              
Share-based Payment Arrangement, Expensed and Capitalized, Amount         $ 217,000        
Subsidiaries [Member]                  
Subsidiary or Equity Method Investee [Line Items]                  
Payments to Noncontrolling Interests     $ 65,000 $ 137,000