INVENTORIES (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory Valuation Reserve

Activity in the Inventory Reserve is as follows (in thousands):
Balance - January 1, 2017	$	607
Additions	384
Write-offs	(59		)
Balance - December 31, 2017	932
Additions	176
Write-offs	—
Balance - December 31, 2018	$	1,108