Acquisitions (Details Textual) - USD ($)		1 Months Ended		3 Months Ended				6 Months Ended
	May. 06, 2014	Aug. 31, 2013	Jul. 31, 2013	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2014	Dec. 31, 2012
Business Acquisition [Line Items]
Professional fees								$ 23,000
Total net revenue				$ 53,071,000		$ 41,111,000		104,409,000	$ 78,165,000
Net income (loss)				(7,290,000)		3,428,000		(13,278,000)	1,704,000
Income tax benefit (expense)				$ (132,000)		9,387,000		$ (311,000)	9,368,000
Option to purchase assets of Transcend			$ 2,700,000
Common stock, shares issued			376,459	61,584,000				61,584,000			61,000,000
Common stock, value			$ 2,900,000	$ 6,000				$ 6,000			$ 6,000	$ 3,000,000
Additional earnout Payments		$ 1,000,000
Revenue generation Period		2 years
Contingent Liability					$ 0
Cost of Revenue
Business Acquisition [Line Items]
Total net revenue				34,052,000		$ 24,198,000		$ 66,518,000	$ 44,207,000
Benefit relating to fair value of contingent liability remeasurement					$ 146,000
Pro Forma
Business Acquisition [Line Items]
Deferred tax benefit	$ 9,400,000
Income tax benefit (expense)							$ 9,400,000			$ 9,400,000
Minimum
Business Acquisition [Line Items]
Fair value of intangible assets discount rates								13.40%
Maximum
Business Acquisition [Line Items]
Fair value of intangible assets discount rates								16.40%
Uptivity
Business Acquisition [Line Items]
Percentage of outstanding shares acquired	100.00%
Business acquisition, purchase price	$ 48,900,000
Business acquisition, cash paid	15,000,000
Business acquisition, fair market value of vested stock options converted to cash	$ 1,900,000
Business acquisition, shares issued	3,821,933
Business acquisition, shares issued, value	$ 32,000,000
Issuance of restricted stock , shares	434,311
Restricted common stock issued expiration period								3 years
Professional fees	$ 934,000
Total net revenue				5,200,000				$ 9,900,000
Net income (loss)				$ (1,800,000)				$ (4,800,000)
Uptivity | Minimum
Business Acquisition [Line Items]
Fair value of intangible assets discount rates	17.00%
Uptivity | Maximum
Business Acquisition [Line Items]
Fair value of intangible assets discount rates	20.60%