PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 70,896		$ 70,896		$ 49,298
Less accumulated depreciation	(35,899)		(35,899)		(33,829)
Total property and equipment, net	34,997		34,997		15,469
Depreciation and amortization	1,700	$ 900	4,300	$ 2,800
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,460		2,460		694
Building
Property, Plant and Equipment [Line Items]
Property and equipment, gross	12,254		12,254		3,845
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	38,811		38,811		28,777
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,004		2,004		1,345
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,631		4,631		3,408
Leasehold and building improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	10,696		10,696		10,558
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	40		$ 40		671
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life			5 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property plant and equipment, useful life			7 years
Leased equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,500		$ 8,500		8,100
Less accumulated depreciation	$ (4,000)		$ (4,000)		$ (4,600)