Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Condensed Consolidated Statements of Comprehensive Loss
Net income (loss)	$ (279)	$ 105	$ 1,321	$ 1,536
Other comprehensive loss:
Unrealized holding loss arising during period		(1)		(1)
Retirement plan loss	(8,674)	(8,786)	(8,179)	(6,711)
Income tax benefit on comprehensive loss	3,315	3,357	3,126	2,565
Other comprehensive loss, net of tax	(5,359)	(5,430)	(5,053)	(4,147)
Comprehensive loss	$ (5,638)	$ (5,325)	$ (3,732)	$ (2,611)