Unaudited Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (1)	$ (728)	$ (1,914)	$ 467
Other comprehensive income (loss):
Unrealized gain on available for sale securities	17	54	55	242
Benefit plan adjustments	1,139	0	1,139	0
SERP liability adjustments	487	0	487	0
Unrealized (loss) gain on interest rate swap	(252)	(1,031)	122	(3,307)
Other comprehensive income (loss) before taxes	1,391	(977)	1,803	(3,065)
Benefit (provision) from income taxes related to other comprehensive income (loss) items	(569)	342	(731)	1,072
Other comprehensive income (loss)	822	(635)	1,072	(1,993)
Comprehensive loss	821	(1,363)	(842)	(1,526)
Comprehensive loss attributable to non-controlling interests	(27)	(40)	(38)	(54)
Comprehensive income (loss) attributable to common stockholders	$ 848	$ (1,323)	$ (804)	$ (1,472)