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NOTES PAYABLE (Details) - USD ($)
9 Months Ended 12 Months Ended
Oct. 04, 2016
Sep. 30, 2018
Dec. 31, 2017
Nov. 20, 2017
Jun. 30, 2017
Line of Credit Facility [Line Items]          
Notes payable   $ 6,023,000 $ 5,969,000    
Annual review delivery period     105 days    
Gerber Finance Inc          
Line of Credit Facility [Line Items]          
Line of credit with maximum borrowing availability   4,000,000.0      
KBS Loan Agreement          
Line of Credit Facility [Line Items]          
Notes payable, net   3,800,000      
Revolving line of credit   4,000,000      
Line of credit with maximum borrowing availability   $ 4,000,000      
KBS Loan Agreement | Gerber Finance Inc          
Line of Credit Facility [Line Items]          
Annual facilities fee percentage   1.50%      
Monthly collateral monitoring fee percentage   0.10%      
KBS Loan Agreement | Prime Rate          
Line of Credit Facility [Line Items]          
Debt interest rate   2.75%      
EBGL Loan Agreement          
Line of Credit Facility [Line Items]          
Notes payable   $ 2,200,000      
Revolving line of credit   $ 3,000,000      
Line of credit with maximum borrowing availability $ 3,000,000.0       $ 3,000,000.0
Automatic extension period 1 year        
Initial line of credit availability $ 1,000,000        
Increase in EBGL Loan Agreement 3,000,000        
Amount of line of credit increment $ 500,000        
Minimum debt service coverage ratio     100.00%    
Audited financial statements delivery period     120 days    
EBGL Loan Agreement | Prime Rate          
Line of Credit Facility [Line Items]          
Debt interest rate         1.50%
Basis spread on variable rate 2.75%        
KBS Loan Agreement, Maturing February 22, 2019          
Line of Credit Facility [Line Items]          
Automatic extension period   1 year      
KBS Loan Agreement, Maturing February 22, 2020          
Line of Credit Facility [Line Items]          
Automatic extension period   1 year      
Director | Payment Guarantee          
Line of Credit Facility [Line Items]          
Guarantor obligation       $ 500,000