5. Balance Sheet Components

Accounts Receivable, Net

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


	June 30,
	2015			2014
Accounts receivable	$	48,304		$	43,901
Less: Allowance for doubtful accounts		(440	)		(364	)
Less: Allowance for sales returns		(1,624	)		(1,558	)

	$	46,240		$	41,979

Property and Equipment, Net

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


	June 30,
	2015			2014
Computer equipment	$	13,656		$	15,111
Software		11,079			10,508
Furniture and fixtures		3,124			3,024
Leasehold improvements		1,806			1,796
Internal software development costs		26,056			23,603

		55,721			54,042
Less: Accumulated depreciation and amortization		(47,156	)		(42,916	)

	$	8,565		$	11,126

Depreciation expense was $4.0 million, $3.9 million and $3.3 million for fiscal years 2015, 2014 and 2013. Amortization expense related to internal software development costs was $2.4 million, $2.6 million and $2.2 million for fiscal years 2015, 2014 and 2013.

Prepaid Expenses and Other Assets

Prepaid expenses and other assets are comprised of the following (in thousands):


	June 30,
	2015		2014
Income tax receivable	$	9,719	$	9,333
Prepaid expenses		1,571		1,649
Other assets		213		665

Total prepaid expenses and other assets	$	11,503	$	11,647

Accrued liabilities

Accrued liabilities are comprised of the following (in thousands):


	June 30,
	2015		2014
Accrued media costs	$	14,728	$	14,407
Accrued compensation and related expenses and taxes payable		8,007		7,103
Accrued professional service and other business expenses		4,411		6,344

Total accrued liabilities	$	27,146	$	27,854