5. Balance Sheet Components

Property and Equipment, Net

Property and equipment consist of the following (in thousands):

	September 30, 2015			December 31, 2014
Software	$	32,320		$	30,791
Computer equipment		21,368			17,325
Leasehold improvements		5,908			2,393
Furniture and fixtures		1,744			1,645
Total		61,340			52,154
Accumulated depreciation and amortization		(37,721	)		(28,783	)
Projects in process		2,832			2,028
Property and equipment, net	$	26,451		$	25,399

Depreciation and amortization expense of property and equipment was $3.3 million and $9.6 million for the three and nine months ended September 30, 2015, respectively, and $3.4 million and $9.6 million for the three and nine months ended September 30, 2014, respectively.

During the three and nine months ended September 30, 2015, the Company capitalized internal use software development and enhancement costs related to the Company’s Retailer iQ platform (“Retailer iQ”) of $0.3 million and $1.1 million, respectively, compared to $0.3 million and $2.5 million during the three and nine months ended September 30, 2014, respectively. During the three and nine months ended September 30, 2015, the Company recognized $2.4 million and $7.0 million respectively, of amortization expense related to Retailer iQ in cost of revenues, and $2.1 million and $5.5 million during the three and nine months ended September 30, 2014, respectively. The unamortized capitalized development and enhancement costs related to Retailer iQ was $13.1 million and $19.0 million as of September 30, 2015 and December 31, 2014, respectively.

Accrued Compensation and Benefits

Accrued compensation and benefits consist of the following (in thousands):

	September 30, 2015		December 31, 2014
Bonus	$	5,168	$	6,909
Vacation		2,167		2,427
Commissions		2,281		3,458
Payroll and related expenses		1,944		2,067
Accrued compensation and benefits	$	11,560	$	14,861

Other Current Liabilities

Other current liabilities consist of the following (in thousands):

	September 30, 2015		December 31, 2014
Distribution fees	$	7,659	$	5,805
Marketing expenses		2,635		3,415
Contingent consideration		2,532		1,048
Accrued property and equipment		1,172		687
Legal and professional fees		984		1,699
Deferred rent		268		536
Other		2,529		2,600
Other current liabilities	$	17,779	$	15,790