PROPERTY, PLANT AND EQUIPMENT

6 Months Ended

Jun. 30, 2017

PROPERTY, PLANT AND EQUIPMENT [Abstract]

PROPERTY, PLANT AND EQUIPMENT

5.  PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:

	June 30,			December 31,
	2017			2016
Land	$	2,250		$	2,234
Buildings and improvements		30,444			30,061
Machinery and equipment		114,628			113,780
Construction in progress		2,302			3,029
		149,624			149,104
Accumulated depreciation		(104,677	)		(100,349	)
Property, plant and equipment, net	$	44,947		$	48,755

Depreciation expense for the three months ended June 30, 2017 and 2016 was $3.4 million and $3.7 million, respectively.  Depreciation expense for the six months ended June 30, 2017 and 2016 was $7.0 million and $7.4 million, respectively.