Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016
Income Statement [Abstract]
Revenue	$ 75,521	$ 83,486	$ 152,527	$ 169,336
Direct costs	61,864	67,574	124,641	138,879
Selling, general and administrative expenses	12,940	14,026	25,863	27,493
Goodwill impairment				21,544
Operating income (loss)	717	1,886	2,023	(18,580)
Interest and other income	11	7	53	25
Interest and other expense	78	104	149	184
Income (loss) before income taxes	650	1,789	1,927	(18,739)
Provision for income taxes	216	530	742	859
Net income (loss)	$ 434	$ 1,259	$ 1,185	$ (19,598)
Net income (loss) per share:
Basic	$ 0.03	$ 0.08	$ 0.08	$ (1.26)
Diluted	$ 0.03	$ 0.08	$ 0.08	$ (1.26)
Weighted average shares outstanding:
Basic	15,142	15,584	15,219	15,554
Diluted	15,479	15,789	15,454	15,554
Cash dividend per common share		$ 0.06		$ 0.12