Acquisitions (Details Textual) (USD $)	0 Months Ended	1 Months Ended														1 Months Ended		1 Months Ended								1 Months Ended			1 Months Ended		1 Months Ended
	Apr. 15, 2011	Oct. 31, 2012	Dec. 31, 2012	Oct. 02, 2012	Dec. 31, 2011	Feb. 01, 2011	May 01, 2012 Information Horizons Limited [Member]	Dec. 31, 2012 Asentus [Member]	Jun. 29, 2012 Asentus [Member]	Jun. 29, 2012 Asentus [Member] Year One [Member]	Dec. 31, 2012 Asentus [Member] Year Two [Member]	Dec. 31, 2012 Rovsing Dynamics [Member]	Dec. 31, 2012 Blessing White [Member]	Oct. 02, 2012 Blessing White [Member]	Apr. 15, 2011 Rwd Technologies [Member]	Aug. 31, 2011 Beneast Training Ltd [Member]	Aug. 01, 2011 Beneast Training Ltd [Member]	Aug. 31, 2011 Van Hee [Member]	Aug. 01, 2011 Van Hee [Member]	Dec. 31, 2012 Performtech [Member]	Dec. 31, 2011 Performtech [Member]	Apr. 15, 2011 Customer Related Intangiable Asset [Member]	Apr. 02, 2011 Customer Related Intangiable Asset [Member]	Feb. 01, 2011 Customer Related Intangiable Asset [Member]	Feb. 01, 2011 Intellectual Property [Member]	Jun. 29, 2012 Intellectual Property [Member] Asentus [Member]	Oct. 02, 2012 Intellectual Property [Member] Blessing White [Member]	Apr. 15, 2011 Acquired Trade Name [Member]	Oct. 31, 2012 Acquired Trade Name [Member] Blessing White [Member]	Oct. 02, 2012 Acquired Trade Name [Member] Blessing White [Member]	Jun. 29, 2012 Software [Member] Asentus [Member]	May 31, 2012 Customer Relationships [Member] Information Horizons Limited [Member]	Jun. 29, 2012 Customer Relationships [Member] Asentus [Member]	Oct. 31, 2012 Customer Relationships [Member] Blessing White [Member]	Oct. 02, 2012 Customer Relationships [Member] Blessing White [Member]
Property, plant and equipment								$ 46,000				$ 5,000	$ 76,000				$ 2,706,000		$ 770,000
Intangible assets						390,000		443,000				775,000	3,280,000		3,726,000							2,935,000	1,412,000	160,000	230,000			791,000
Finite-Lived Intangible Asset, Useful Life	5 years 10 months 24 days	3 years														5 years		3 years								3 years			2 years		3 years	3 years	5 years	5 years
Working Capital																						2,220,000
Goodwill								1,931,000				340,000	6,295,000
Business Acquisition, Contingent Consideration, at Fair Value, Current										1,600,000
Acquisitions			8,566,000	90,000	20,711,000		505,000							3,280,000												118,000	1,238,000			191,000	775,000		325,000		1,761,000
Total purchase price								2,182,000	1,417,000			720,000	9,993,000	10,762,000
Business Acquisition Additional Contingent Consideration										3,700,000
Maximum contingent consideration due Total			7,418,000					3,700,000		3,700,000	2,100,000									2,540,000	2,539,000
Business acquisition contigent consideration, other long term liability			544,000		739,000
Cash purchase price paid at closing			$ 317,000					$ 1,417,000	$ 1,100,000			$ 720,000	$ 10,762,000									$ 27,980,000