Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Goodwill

Changes in goodwill for the six months ended June 30, 2014, are as follows (in thousands):

Balance, December 31, 2013	$	18,712
Goodwill related to the acquisition of Ionia		6,295
Balance, June 30, 2014	$	25,007

Intangible Assets

Intangible assets consist of the following (in thousands):

			December 31, 2013						June 30, 2014
	Estimated Useful Life		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trade names		1-5 years	$	666	$	666	$	—	$	676	$	670	$	6
Customer base		5-7 years		3,789		1,901		1,888		5,129		2,199		2,930
Customer backlog		4 months		—		—		—		120		120		—
Domain names		5 years		894		341		553		908		425		483
Software		4 years		299		299		—		299		299		—
Technology		3-6 years		13,963		1,835		12,128		14,363		2,856		11,507
Technology and know-how		3 years		3,176		2,597		579		3,176		3,125		51
Documented know-how		4 years		—		—		—		280		22		258
Non-compete agreements		5 years		162		34		128		162		53		109
Internally developed software		3 years		2,485		875		1,610		3,390		1,258		2,132
			$	25,434	$	8,548	$	16,886	$	28,503	$	11,027	$	17,476

Future Estimated Amortization Expense

operating expenses. Future estimated amortization expense for intangible assets is as follows at June 30, 2014 (in thousands):

Amortization Expense (Years Ending December 31)	Amount
2014 (Six months ending December 31)		2,346
2015		4,485
2016		3,939
2017		3,339
2018		2,863
Thereafter		504
Total	$	17,476