3. Financial Statement Components

Cash and cash equivalents consisted of the following (in thousands):



	March 31, 2016		December 31, 2015
Cash	$	37,741	$	38,474
Money market funds	20,026		20,010
Cash and cash equivalents	$	57,767	$	58,484

Accounts receivable, net consisted of the following (in thousands):



	March 31, 2016			December 31, 2015
Trade accounts receivable	$	11,672		$	9,554
Unbilled trade accounts receivable, net of advance client deposits	871			1,028
Allowance for doubtful accounts	(15		)	(15		)
Accounts receivable, net	$	12,528		$	10,567

Prepaid expenses and other current assets consisted of the following (in thousands):



	March 31, 2016		December 31, 2015
Prepaid expenses	$	3,441	$	1,800
Other current assets	458		384
Prepaid expenses and other current assets	$	3,899	$	2,184

Property and equipment, net consisted of the following (in thousands):



	March 31, 2016			December 31, 2015
Computer and network equipment	$	31,600		$	30,277
Computer software	3,671			3,566
Internal-use software development costs	236			128
Furniture and fixtures	1,120			1,113
Leasehold improvements	619			619
Property and equipment	37,246			35,703
Accumulated depreciation and amortization	(24,451		)	(22,478		)
Property and equipment, net	$	12,795		$	13,225

Depreciation and amortization expense associated with property and equipment was $2.0 million and $1.6 million for the three months ended March 31, 2016 and 2015, respectively.

Property and equipment capitalized under capital lease obligations consist primarily of computer and network equipment and were as follows (in thousands):



	March 31, 2016			December 31, 2015
Gross	$	28,603		$	27,302
Less: accumulated depreciation and amortization	(18,105		)	(16,429		)
Total	$	10,498		$	10,873

Accrued and other current liabilities consisted of the following (in thousands):



	March 31, 2016		December 31, 2015
Accrued compensation and benefits	$	7,211	$	5,718
Accrued expenses	2,536		2,193
Accrued and other current liabilities	$	9,747	$	7,911