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Other Current Liabilities
 9 Months Ended
Sep. 30, 2019
Other Current Liabilities [Abstract]  
Other Current Liabilities

6. Other Current Liabilities

Other current liabilities consists of (in thousands):

 

 

 

 

 

 

 

September 30,

 

December 31,

 

2019

 

2018

Operating lease liability

$

513

 

$

         —

Due to affiliate

 

 9

 

 

164

Accrued professional fees

 

1,142

 

 

1,206

Pension and other postretirement liabilities

 

69

 

 

69

Accrued liabilities

 

58

 

 

56

 

$

1,791

 

$

1,495