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RECENT ACCOUNTING PRONOUNCEMENTS - Effects of Topic 842 (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease right-of-use asset $ 176  
Lease liability, current portion (75)  
Lease liability, net of current portion $ (94)  
Topic 842    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease right-of-use asset   $ 219
Lease liability, current portion   (68)
Lease liability, net of current portion   (151)
Impact of Adoption    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease right-of-use asset   219
Lease liability, current portion   (68)
Lease liability, net of current portion   $ (151)