Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Total revenues	$ 219,104	$ 218,215
Cost of revenues:
Total cost of revenues	193,053	189,868
Gross margin	26,051	28,347
Selling, general and administrative expenses	32,115	33,160
Depreciation and amortization	1,000	969
Loss from operations	(7,064)	(5,782)
Other income (expense):
Investment income, net	2,967	3,072
Interest expense	(235)	(477)
Other, net	1	12
Other income, net	2,733	2,607
Loss before income taxes	(4,331)	(3,175)
Benefit from income taxes	(924)	(875)
Net loss	$ (3,407)	$ (2,300)
Basic loss per common share	$ (450)	$ (310)
Weighted average number of basic common shares outstanding	7,521	7,407
Diluted loss per common share	$ (450)	$ (310)
Weighted average number of diluted common shares outstanding	7,521	7,407
Professional Employer Service Fees [Member]
Revenues:
Total revenues	$ 193,592	$ 190,527
Staffing Services [Member]
Revenues:
Total revenues	25,512	27,688
Direct Payroll Costs [Member]
Cost of revenues:
Total cost of revenues	19,077	20,842
Payroll Taxes and Benefits [Member]
Cost of revenues:
Total cost of revenues	119,462	114,797
Workers' Compensation [Member]
Cost of revenues:
Total cost of revenues	$ 54,514	$ 54,229