v3.10.0.1
DEBT AND CREDIT ARRANGEMENTS - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2017
Apr. 30, 2017
Oct. 31, 2017
Aug. 31, 2013
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Nov. 30, 2015
May 31, 2014
Debt Instrument [Line Items]                    
Mortgage balance $ 25,452,000       $ 25,394,000   $ 25,394,000      
Current portion of long-term debt with affiliate 113,000       117,000   117,000      
Note payable to Squadron                    
Debt Instrument [Line Items]                    
Interest rate   11.00%             10.00% 10.00%
Additional revolving loan commitment   $ 16,000,000             $ 7,000,000  
Deferred financing cost   $ 1,000,000                
Extension fee payable period   3 years                
Mortgage balance 20,000,000       20,000,000   20,000,000      
Debt instrument, extension fee cancelled     $ 667,000              
Interest expense         608,000 $ 761,000 1,722,000 $ 1,857,000    
Mortgage payable to affiliate                    
Debt Instrument [Line Items]                    
Interest rate       5.00%            
Mortgage balance 1,531,000       1,447,000   1,447,000      
Monthly interest and principal installments       $ 16,000            
Current portion of long-term debt with affiliate 113,000       $ 117,000   $ 117,000      
Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Revolving credit facility $ 15,000,000                  
Three month LIBOR | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Debt instrument, basis spread on variable rate 8.61%                  
Debt instrument, interest rate, effective percentage 10.00%