Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenue	$ 324,893	$ 369,478	$ 393,268
Direct costs	265,711	302,318	313,930
Selling, general and administrative expenses	55,200	56,523	62,186
Goodwill impairment charges	37,329
Operating income (loss)	(33,347)	10,637	17,152
Interest and other income	188	79	111
Non-taxable life insurance gain		246
Interest and other expense	377	233	325
Income (loss) before income taxes	(33,536)	10,729	16,938
Provision for income taxes	1,102	4,219	6,588
Net income (loss)	$ (34,638)	$ 6,510	$ 10,350
Net income (loss) per share:
Basic	$ (2.22)	$ 0.42	$ 0.68
Diluted	$ (2.22)	$ 0.41	$ 0.64
Weighted average shares outstanding:
Basic	15,593	15,479	15,120
Diluted	15,593	15,920	16,260
Cash dividend per common share	$ 0.18	$ 0.24	$ 0.24