5. Property, Plant and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Major classifications and expected lives of property, plant and equipment are summarized below:

(In thousands)		December 31,
	Expected Life	2017			2016
Land	–	$	324		$	292
Office buildings	39 years		4,785			4,280
Production facilities	10 - 20 years		11,509			10,734
Machinery and equipment	3 - 15 years		27,492			24,492
Furniture and fixtures	3 - 20 years		1,892			1,706
Total			46,002			41,504
Less accumulated depreciation			(29,503	)		(25,968	)
Property, plant and equipment, net			16,499			15,536
Construction in progress			1,890			371
		$	18,389		$	15,907

All property, plant and equipment is depreciated using the straight-line method over the estimated useful lives of depreciable assets which range from 3 to 39 years. Maintenance and repair costs are charged to operations as incurred and major improvements extending asset lives are capitalized.

The amounts of depreciation expense recorded on the Company’s property, plant and equipment for the year ended December 31, 2017 and 2016 was $2,774,000 and $2,561,000, respectively.