Acquisitions (Details) - USD ($) $ in Thousands			2 Months Ended	3 Months Ended			6 Months Ended
	May 11, 2018	Sep. 20, 2017	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017		Dec. 31, 2017
Business Acquisition [Abstract]
Cash consideration before working capital adjustment		$ 8,750
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill			$ 13,518	$ 13,518			$ 13,518			$ 8,431
Business Combination, Acquired Receivables [Abstract]
Revenue				24,698	$ 17,125	[1]	47,593	$ 33,467	[1]
Net (loss) income				981	827		(515)	561
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		2,569
Business Acquisition, Pro Forma Information [Abstract]
Revenue				25,892	30,413		50,763	57,768
Net income				615	$ 459		(1,368)	$ (512)
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 1,856
Finite-lived intangible assets, weighted average useful life		10 years
Trademarks and Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets acquired		$ 713
Finite-lived intangible assets, weighted average useful life		3 years
True North Consulting, LLC [Member]
Business Acquisition [Abstract]
Percentage of ownership interest acquired	100.00%
Business acquisition, name of acquired entity	True North LLC
Business acquisition, effective date of acquisition	May 11, 2018
Cash purchase price	$ 9,941
Cash consideration before working capital adjustment	9,750
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Cash	150
Contract receivables	2,345
Prepaid expenses and other current assets	4
Property, and equipment, net	1
Intangible assets	3,911
Accounts payable, accrued expenses, and other liabilities	(1,420)
Accrued compensation	(137)
Total identifiable net assets	4,854
Goodwill	5,087
Net assets acquired	9,941
Business Combination, Acquired Receivables [Abstract]
Acquired receivable, fair value	2,345
Acquired receivable, gross contractual amount	2,345
Acquired receivables, estimated uncollectible	0
Tax deductible goodwill	5,087
Cash consideration in escrow	1,463
Proceeds from issuance of debt	$ 10,300
Transaction costs			491	$ 491			$ 491
Revenue			1,275
Net (loss) income			$ 228
Absolute Consulting, Inc. [Member]
Business Acquisition [Abstract]
Percentage of ownership interest acquired		100.00%
Business acquisition, name of acquired entity		Absolute Consulting, Inc.
Business acquisition, effective date of acquisition		Sep. 20, 2017
Cash purchase price		$ 9,521
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Cash		455
Contract receivables		5,121
Prepaid expenses and other current assets		68
Property, and equipment, net		184
Intangible assets		2,569
Accounts payable, accrued expenses, and other liabilities		(78)
Accrued compensation		(1,617)
Total identifiable net assets		6,702
Goodwill		2,819
Net assets acquired		9,521
Business Combination, Acquired Receivables [Abstract]
Acquired receivable, fair value		5,121
Acquired receivable, gross contractual amount		5,121
Acquired receivables, estimated uncollectible		0
Tax deductible goodwill		2,819
Cash consideration in escrow		$ 1,000

[1] Prior period amounts have not been adjusted under the modified retrospective transition method for the adoption of ASC 606.