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OTHER CURRENT LIABILITIES (Tables)
 6 Months Ended
Jun. 30, 2019
Other Liabilities, Current [Abstract]  
Components of other current liabilities
Other current liabilities consisted of the following (in thousands):
 
 
June 30,
2019
 
December 31,
2018
Accrued legal
 
$
3,146

 
$
1,827

Lease liabilities - current
 
1,170

 
—

Income taxes payable
 
307

 
204

Other current liabilities
 
1,345

 
1,163

Total other current liabilities
 
$
5,968

 
$
3,194