Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 325,080	$ 392,285	$ 366,091
Direct costs	245,003	305,835	289,133
Selling, general and administrative expenses	69,001	73,708	67,828
Operating income	11,076	12,742	9,130
Interest and other income	359	587	506
Gain on sale of building			824
Non-taxable life insurance gain			987
Interest and other expense	1,881	1,592	786
Income before income taxes	9,554	11,737	10,661
Provision (benefit) for income taxes	2,945	(1,993)	3,022
Net income	$ 6,609	$ 13,730	$ 7,639
Net income per share:
Basic	$ 0.46	$ 0.99	$ 0.56
Diluted	$ 0.44	$ 0.92	$ 0.53
Weighted average shares outstanding:
Basic	14,440	13,926	13,621
Diluted	15,156	14,971	14,427