CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement Of Income and Comprehensive Income [Abstract]
Net (loss) income	$ (145)	$ 177
Other comprehensive income:
Retirement benefits adjustment
Total comprehensive (loss) income	$ (145)	$ 177