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Goodwill and Other Intangible Assets - Components of Identifiable Intangible assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets, Accumulated Amortization	$ 8,379	$ 5,691
Total Intangible Assets, Gross Carrying Value	28,429	28,429
Total Intangible Assets, Net Carrying Value	$ 20,050	$ 22,738
Client Relationships [Member] | IT Staffing Services [Member]
Amortization Period (In Years)	12 years	12 years
Intangible Assets, Gross Carrying Value	$ 7,999	$ 7,999
Intangible Assets, Accumulated Amortization	3,027	2,361
Intangible Assets, Net Carrying Value	$ 4,972	$ 5,638
Client Relationships [Member] | Data and Analytics Services [Member]
Amortization Period (In Years)	12 years	12 years
Intangible Assets, Gross Carrying Value	$ 16,671	$ 16,671
Intangible Assets, Accumulated Amortization	3,415	2,025
Intangible Assets, Net Carrying Value	$ 13,256	$ 14,646
Covenant Not-to-Compete [Member] | IT Staffing Services [Member]
Amortization Period (In Years)	5 years	5 years
Intangible Assets, Gross Carrying Value	$ 319	$ 319
Intangible Assets, Accumulated Amortization	290	226
Intangible Assets, Net Carrying Value	$ 29	$ 93
Covenant Not-to-Compete [Member] | Data and Analytics Services [Member]
Amortization Period (In Years)	5 years	5 years
Intangible Assets, Gross Carrying Value	$ 761	$ 761
Intangible Assets, Accumulated Amortization	374	222
Intangible Assets, Net Carrying Value	$ 387	$ 539
Trade Name [Member] | IT Staffing Services [Member]
Amortization Period (In Years)	3 years	3 years
Intangible Assets, Gross Carrying Value	$ 249	$ 249
Intangible Assets, Accumulated Amortization	$ 249	$ 249
Trade Name [Member] | Data and Analytics Services [Member]
Amortization Period (In Years)	5 years	5 years
Intangible Assets, Gross Carrying Value	$ 1,221	$ 1,221
Intangible Assets, Accumulated Amortization	600	356
Intangible Assets, Net Carrying Value	$ 621	$ 865
Technology [Member] | Data and Analytics Services [Member]
Amortization Period (In Years)	7 years	7 years
Intangible Assets, Gross Carrying Value	$ 1,209	$ 1,209
Intangible Assets, Accumulated Amortization	424	252
Intangible Assets, Net Carrying Value	$ 785	$ 957

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
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-Topic 350
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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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-Topic 350
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