Acquisitions (Details Textual) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended				1 Months Ended	0 Months Ended	1 Months Ended	0 Months Ended
	Oct. 01, 2012	Dec. 31, 2014	Apr. 01, 2014	Jun. 29, 2012	Sep. 17, 2012	May 31, 2013	May 31, 2013 period	Jun. 12, 2013	Jun. 30, 2013	Sep. 27, 2012	May 01, 2012	Dec. 31, 2013
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years	2 years 11 months
Business acquisition contingent consideration, other long term liability		$ 2,400,000										$ 1,400,000
Accounts payable and accrued liability		2,700,000										2,400,000
Effective Companies [Member]
Business Acquisition [Line Items]
Cash purchase price			9,000,000
Number of earning target periods			2
Contingent consideration earnings target period			12 months
Amortizable intangible assets			1,613,000
Information Horizons Limited [Member]
Business Acquisition [Line Items]
Acquisitions											500,000
Asentus [Member]
Business Acquisition [Line Items]
Cash purchase price				1,417,000
Number of earning target periods				2
Contingent consideration earnings target period				12 months
Total purchase price				1,400,000
Additional contingent consideration				3,700,000
Rovsing Dynamics [Member]
Business Acquisition [Line Items]
Cash purchase price					720,000
Amortizable intangible assets					800,000
Blessing White [Member]
Business Acquisition [Line Items]
Cash purchase price	10,529,000
Amortizable intangible assets	3,300,000
Acquisitions	100,000
Total purchase price	10,800,000
Working capital adjustment paid by sellers	200,000
Prospero [Member]
Business Acquisition [Line Items]
Cash purchase price						7,046,000	7,028,000
Number of earning target periods						2	2
Contingent consideration earnings target period						12 months
Additional contingent consideration						4,700,000	4,700,000
Lorien [Member]
Business Acquisition [Line Items]
Cash purchase price								6,734,000	6,734,000
Contingent consideration earnings target period								12 months
Additional contingent consideration								1,000,000
Intangible Assets [Member] | Effective Companies [Member]
Business Acquisition [Line Items]
Amortizable intangible assets			1,613,000
Acquired finite-lived intangible assets, weighted average useful life			4 years
Intellectual Property [Member] | Asentus [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life				3 years
Acquisitions				100,000
Intellectual Property [Member] | Blessing White [Member]
Business Acquisition [Line Items]
Acquisitions	1,200,000
Proprietary Software [Member] | Rovsing Dynamics [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life										3 years
Customer-Related Intangible Assets [Member] | Information Horizons Limited [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life											3 years
Customer-Related Intangible Assets [Member] | Asentus [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life				5 years
Acquisitions				300,000
Customer-Related Intangible Assets [Member] | Blessing White [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years
Acquisitions	1,800,000
Customer-Related Intangible Assets [Member] | Prospero [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life						5 years
Acquisitions						2,801,000	2,801,000
Customer-Related Intangible Assets [Member] | Lorien [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life								5 years
Acquisitions								1,700,000
Trade Names [Member] | Blessing White [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	2 years
Acquisitions	200,000
Technology [Member] | Blessing White [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	3 years