Condensed Consolidated Statements of Comprehensive Income Loss (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,181)	$ 3,405	$ (862)	$ 3,127
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(217)	440	632	(2,386)
Defined benefit pension plan, net of tax:
Amortization of deferred loss, net of tax benefit of $7 for the three months ended June 30, 2013; net of tax benefit of $14 for the six months ended June 30, 2013 respectively	0	38	0	75
Amortization of prior service cost, net of tax benefit of $7 and $2 for the three months ended June 30, 2014 and 2013, respectively; net of tax benefit of $14 and $4 for the six months ended June 30, 2014 and 2013, respectively	29	9	58	18
Other comprehensive income (loss), net of tax	(188)	487	690	(2,293)
Comprehensive income (loss)	$ (1,369)	$ 3,892	$ (172)	$ 834