Property, Plant and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment, net

Property, plant and equipment, at cost, net, consists of the following:

					Estimated
	December 31,				Useful Life
(in thousands)	2017		2016		In Years
Leasehold improvements	$	1,221	$	1,125	Shorter of useful life or lease term
Furniture, fixtures, and equipment	5,110		4,090		2 – 10
Software	3,511		3,245		1 – 7
	9,842		8,460
Less: accumulated depreciation and amortization	8,090		6,700
Total	$	1,752	$	1,760