PREPAID EXPENSES AND OTHER CURRENT ASSETS AND ACCRUED EXPENSES

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets at December 31, 2014 and 2013 are as follows (in thousands):



	2014		2013
Available-for-sale securities	$	327	$	3,537
Prepaid expenses	2,325		2,979
Other receivable	2,283		6,926
Prepaid direct costs	2,977		3,319
Prepaid software license	872		1,131
Prepaid software and hardware maintenance cost	1,438		1,559
Restricted cash	400		40
Other	2,914		3,154
	$	13,536	$	22,645

Accrued Expenses

Accrued expenses at December 31, 2014 and 2013 are as follows (in thousands):



	2014		2013
Accrued wages and wage-related taxes	$	9,427	$	12,496
Accrued sales commissions	4,744		5,616
Employee benefits	1,922		1,440
Accrued professional fees	2,068		2,275
Deferred revenue	9,105		5,222
Deferred rent	1,433		1,652
Interest payable	2,442		2,276
Earn-out liability	4,727		—
Other	1,939		3,425
	$	37,807	$	34,402

Excise and Sales Tax

Some of our solutions may be subject to telecommunications excise tax and sales taxes in states and local jurisdictions where we have not collected and remitted such taxes from our customers. During the years ended December 31, 2014 and 2013 respectively, $0.1 million and $0.9 million of payments of tax and interest related to the settlement of these state excise and sales tax contingencies were made.

We have reserves for certain state excise and sales tax contingencies based on the likelihood of obligation. These contingencies are included in “Accrued taxes, other than income taxes” in our consolidated balance sheets. At December 31, 2014 and 2013, we had reserved $9.9 million and $8.3 million, respectively, for certain state excise and sales tax contingencies and interest. We believe we have appropriately accrued for these contingencies. In the event that actual results differ from these reserves, we may need to make adjustments, which could materially impact our financial condition and results of operations. In addition, states or local taxing authorities may disagree with our method of assessing and remitting such taxes or additional states or local taxing authorities may subject us to inquiries regarding such taxes.