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Business Segments and Geographic Information - Summary of Assets by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 102,046	$ 90,584	$ 92,584
Capital Expenditures	298	1,014	771
Depreciation & Amortization	3,589	3,434	3,182
Data and analytics services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	55,792	41,527	43,182
Capital Expenditures	193	203	175
Depreciation & Amortization	2,245	2,078	2,051
IT Staffing Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	46,254	49,057	49,402
Capital Expenditures	105	811	596
Depreciation & Amortization	$ 1,344	$ 1,356	$ 1,131

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Payments and capital expenditures incurred but not yet paid to acquire property plant and equipment.

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