Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Sales and service revenue
Product sales	$ 78,457	$ 76,484
Service revenue	14,018	19,267
Net sales	92,475	95,751
Cost of sales and service revenue
Cost of product sales	62,551	62,100
Cost of service revenue	12,727	16,190
Cost of sales	75,278	78,290
Gross profit	17,197	17,461
Selling, general and administrative expenses	12,609	13,344
Contingent consideration write-off	0	0
Goodwill and intangible asset impairment	0	0
Restructuring expense	275	428
Income from operations	4,313	3,689
Other (expense) income:
Interest expense	(5,591)	(4,259)
Other, net	122	112
Total other expense	(5,469)	(4,147)
Loss before income taxes	(1,156)	(458)
Provision (benefit) for income taxes	309	(16)
Net loss	(1,465)	(442)
Other comprehensive income (expense):
Change in foreign currency translation adjustment	(79)	44
Reclassification adjustment for losses on interest rate hedges included in net earnings, net of tax of $0, $0, $157 and $0	0	0
Unrealized loss arising during period from interest rate hedges, net of tax of $0 for the three months ended March 31, 2014	0	(129)
Total comprehensive loss	$ (1,544)	$ (527)
Amounts per common share:
Net loss per common share	$ (0.11)	$ (0.03)
Net loss per common share assuming dilution	$ (0.11)	$ (0.03)
Weighted average common shares (in shares)	12,794,766	12,663,818
Weighted average dilutive common shares outstanding (in shares)	12,794,766	12,663,818