Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Sales and service revenue
Product sales	$ 81,693	$ 81,076	$ 245,349	$ 246,343
Service revenue	15,642	23,580	53,674	69,844
Net sales	97,335	104,656	299,023	316,187
Cost of sales and service revenue
Cost of product sales	61,535	63,579	195,170	192,309
Cost of service revenue	13,757	20,659	45,215	61,565
Cost of sales	75,292	84,238	240,385	253,874
Gross profit	22,043	20,418	58,638	62,313
Selling, general and administrative expenses	14,615	13,783	41,770	41,862
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0	0	0	(7,950)
Asset Impairment Charges	0	0	0	4,222
Restructuring expense	765	0	2,288	0
Income from operations	6,663	6,635	14,580	24,179
Other (expense) income:
Interest expense	(5,946)	(4,328)	(23,800)	(12,485)
Other, net	(75)	49	205	449
Total other expense	(6,021)	(4,279)	(23,595)	(12,036)
Income (loss) before income taxes	642	2,356	(9,015)	12,143
(Benefit) provision for income taxes	(754)	281	(2,557)	3,567
Net income (loss)	1,396	2,075	(6,458)	8,576
Other comprehensive income (expense):
Change in foreign currency translation adjustment	(112)	118	(18)	(19)
Reclassification adjustment for losses on interest rate hedges included in net earnings, net of tax of $0, $0, $157 and $0	0	0	278	0
Unrealized gain/(loss) arising during period from interest rate hedges, net of tax of $0, ($89), $0 and ($93)	0	(153)	0	(163)
Total comprehensive income (loss)	$ 1,284	$ 2,040	$ (6,198)	$ 8,394
Amounts per common share:
Net income (loss) per common share	$ 0.11	$ 0.16	$ (0.51)	$ 0.68
Net income (loss) per common share assuming dilution	$ 0.11	$ 0.16	$ (0.51)	$ 0.67
Weighted average common shares (in shares)	12,740,034	12,617,121	12,704,568	12,604,033
Weighted average dilutive common shares outstanding (in shares)	12,887,363	12,718,807	12,704,568	12,710,396