Debt (Details)					1 Months Ended	3 Months Ended				3 Months Ended						1 Months Ended	3 Months Ended					1 Months Ended											3 Months Ended				1 Months Ended				1 Months Ended
	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Mar. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Mar. 31, 2012 Telwares Installment payment due March 16, 2012 USD ($)	Mar. 31, 2013 Telwares Installment payment due March 16, 2012 USD ($)	Mar. 31, 2013 Telwares Installment payment due March 16, 2013 USD ($)	Mar. 31, 2013 Telwares Consideration payable on achievement of revenue targets Maximum USD ($)	Dec. 19, 2011 ProfitLine USD ($)	Mar. 31, 2013 ProfitLine Installment payment due December 19, 2012 USD ($)	Mar. 31, 2013 ProfitLine Installment payment due December 19, 2012 Prior to payment of first installment of deferred consideration USD ($)	Mar. 31, 2013 ProfitLine Installment payment due June 19, 2013 USD ($)	Mar. 31, 2013 ProfitLine Installment payment due June 19, 2013 After payment of first installment and before payment of second installment USD ($)	Dec. 19, 2011 ProfitLine Installment payment due September 19, 2013 After payment of first installment and before payment of second installment Minimum USD ($)	Jan. 10, 2012 Anomalous USD ($)	Feb. 28, 2013 ttMobiles Installment payment due February 21, 2013 GBP (£)	Mar. 31, 2013 ttMobiles Installment payment due February 21, 2013 USD ($)	Mar. 31, 2013 ttMobiles Installment payment due February 21, 2013 GBP (£)	Aug. 08, 2012 Symphony USD ($)	Mar. 31, 2013 Symphony Minimum USD ($)	Mar. 31, 2013 Symphony Cash payable on twelve month anniversary of the closing USD ($)	Feb. 28, 2013 Symphony Cash payable on the six-month anniversary of the closing USD ($)	Mar. 31, 2013 Symphony Cash payable on the six-month anniversary of the closing USD ($)	Mar. 31, 2013 Symphony Consideration payable on achievement of revenue targets USD ($)	Mar. 31, 2013 Contingent consideration HCL-EMS USD ($)	Dec. 31, 2012 Contingent consideration HCL-EMS USD ($)	Jan. 25, 2011 Contingent consideration HCL-EMS USD ($)	Mar. 31, 2013 Contingent consideration HCL-EMS Installment payment due March 16, 2012 USD ($)	Apr. 30, 2013 Contingent consideration HCL-EMS Installment payment due March 16, 2013 USD ($)	Mar. 31, 2013 Deferred purchase price Telwares USD ($)	Dec. 31, 2012 Deferred purchase price Telwares USD ($)	Mar. 16, 2011 Deferred purchase price Telwares USD ($)	Mar. 31, 2013 Deferred purchase price Telwares Consideration payable on achievement of revenue targets USD ($)	Mar. 31, 2013 Deferred purchase price ProfitLine USD ($)	Dec. 31, 2012 Deferred purchase price ProfitLine USD ($)	Dec. 19, 2011 Deferred purchase price ProfitLine USD ($)	Dec. 31, 2012 Deferred purchase price ProfitLine Installment payment due December 19, 2012 USD ($)	Mar. 31, 2013 Deferred purchase price Anomalous USD ($)	Dec. 31, 2012 Deferred purchase price Anomalous USD ($)	Jan. 10, 2012 Deferred purchase price Anomalous USD ($)	Jan. 31, 2013 Deferred purchase price Anomalous Installment payment due first anniversary after closing (January 10, 2013) USD ($)	Mar. 31, 2013 Deferred purchase price ttMobiles USD ($)	Dec. 31, 2012 Deferred purchase price ttMobiles USD ($)	Feb. 21, 2012 Deferred purchase price ttMobiles USD ($)	Mar. 31, 2013 Deferred purchase price Symphony USD ($)	Dec. 31, 2012 Deferred purchase price Symphony USD ($)	Mar. 31, 2013 Deferred purchase price Symphony Maximum USD ($)	Mar. 31, 2013 Capital lease and other obligations USD ($)	Dec. 31, 2012 Capital lease and other obligations USD ($)
Debt
Total notes payable	$ 13,165,000	$ 22,574,000																							$ 1,891,000	$ 2,046,000					$ 1,226,000			$ 4,470,000	$ 4,438,000				$ 978,000				$ 2,420,000		$ 6,304,000	$ 10,662,000		$ 500,000	$ 804,000
Less current portion	(13,112,000)	(22,443,000)
Notes payable-less current portion	53,000	131,000
Gross amount of earn-out								500,000												4,000,000	6,400,000		4,400,000	40,200,000				1,900,000	1,900,000
Unamortized discount																									0					0				30,000				0				0			71,000
Deferred cash consideration									9,000,000						1,000,000				4,400,000
Deferred cash consideration						1,250,000	1,250,000			4,500,000		5,000,000					2,400,000	1,500,000
Deferred cash consideration paid																1,500,000						4,400,000															4,100,000				979,000
Payment					1,250,000																																4,500,000
Agreed reduction in gross amount of the year first earn-out																																	400,000
Deferred cash consideration paid related to indemnity claims										400,000																											400,000
Imputed interest recorded based on weighted average cost of debt																			200,000								600,000					300,000				300,000				29,000				100,000
Cash and cash equivalents, less bank and equivalent debt														15,000,000
Contingent consideration under Indian purchase agreement																							2,500,000
Cash and cash equivalents	43,554,000	50,211,000	37,866,000	43,407,000
Contingent advance escrow deposit											4,500,000		4,500,000
Earn-out payable, maximum amount																																															4,000,000
Deferred cash consideration paid related to installment resulting from reduction in potential cash payment																																	$ 900,000