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RESTRUCTURING COSTS (Tables)
 12 Months Ended
Dec. 31, 2018
Restructuring and Related Activities [Abstract]  
Schedule of restructuring costs
The following table presents a reconciliation of the restructuring reserve recorded within other current liabilities on the Company’s consolidated balance sheet as of December 31, 2018 (in thousands):
 
 
Employee
Separation Costs
 
Asset-Related Charges
 
Other
 
Total
Balance as of December 31, 2017
 
$
1,522

 
$
—

 
$
57

 
$
1,579

Adjustments
 
(44
)
 
—

 
(28
)
 
(72
)
Non-cash activity
 
(10
)
 
—

 
(29
)
 
(39
)
Cash payments
 
(1,468
)
 
—

 
—

 
(1,468
)
Balance as of December 31, 2018
 
$
—

 
$
—

 
$
—

 
$
—

The following table summarizes the total expenses recorded related to the 2017 restructuring activities reflected in the consolidated statements of operations by type of activity. There were no additional restructuring activities during the year ended December 31, 2018. The Company recorded $44,000 adjustments to the 2017 restructuring costs during the three months ended March 31, 2018. There were no restructuring costs in 2016.
 
 
Twelve months ended December 31, 2017
 
 
Employee Separation Costs
 
Asset-Related Charges
 
Other
 
Total
 
 
(in thousands)
Restructuring
 
$
1,515

 
$
22

 
$
82

 
$
1,620