CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 716	$ 392	$ 11,163	$ 4,014
Other comprehensive (loss), net of tax:
Net actuarial pension loss amortization, net of income tax of $0, $0, $0 and $0	0	0	1	0
Prior service cost (credit) amortization, net of income tax of $151, $150, $301 and $301	(238)	(238)	(477)	(476)
Other comprehensive (loss), net of tax	(238)	(238)	(476)	(476)
Comprehensive income	$ 478	$ 154	$ 10,687	$ 3,538