Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 982	$ 11,168
Other comprehensive (loss)/income:
Foreign currency translation adjustments	(323)	(3,836)
Comprehensive income	831	7,620
Interest Rate Swap Agreement [Member]
Other comprehensive (loss)/income:
Interest rate swap agreement, net of tax of $14 and $31 at respective dates	27	56
Pension Plan [Member]
Other comprehensive (loss)/income:
Pension plan amortization of net actuarial loss and prior service cost, net of tax of $70 and $116 at respective dates	$ 145	$ 232