6. Commitments and Contingencies

Lease and rent obligations

Our commitments include obligations outstanding under operating leases, which expire through 2020. We have lease commitments for office space in Bellevue, Washington; San Diego, California; Boston, Massachusetts; Taipei, Taiwan; Tokyo, Japan; and Trowbridge, UK. We also lease office space on a month-to-month basis in Akron, Ohio.

In August 2013, we amended the lease agreement for our Bellevue, Washington headquarters and extended the term of the original lease that was scheduled to expire in August 2014 to May 2020.

Rent expense was $324,000 and $376,000 for the three months ended March 31, 2014 and 2013, respectively.

As of March 31, 2014, we had $250,000 pledged as collateral for a bank letter of credit under the terms of our headquarters facility lease. The pledged cash supporting the outstanding letter of credit is classified as restricted cash.

Future operating lease commitments are as follows by calendar year (in thousands):


Remainder of 2014	$	828
2015		1,101
2016		1,116
2017		1,140
2018		1,114
2019		1,038
2020		437

Total	$	6,774

Loss Contingencies

From time to time, we are subject to legal proceedings, claims, and litigation arising in the ordinary course of business including tax assessments. We defend ourselves vigorously against any such claims. When (i) it is probable that an asset has been impaired or a liability has been incurred and (ii) the amount of the loss can be reasonably estimated, we record the estimated loss. We provide disclosure in the notes to the consolidated financial statements for loss contingencies that do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the financial statements. Significant judgment is required to determine the probability that a liability has been incurred and whether such liability is reasonably estimable. We base accruals made on the best information available at the time which can be highly subjective. The final outcome of these matters could vary significantly from the amounts included in the accompanying consolidated financial statements.

Volume Pricing Agreements

In conjunction with our activities under our OEM Distribution Agreements (“ODAs”) with Microsoft Corporation (“Microsoft”), we enter into OEM Volume Royalty Pricing (“OVRP”) commitments with Microsoft. Under these OVRPs, we are provided with volume pricing on a customer-by-customer basis assuming certain minimum unit volumes are met. The OVRP terms are for 12 months. In the event we do not meet the committed minimum unit volumes, we are obligated to pay the difference between the committed per-unit volume rate and the actual per-unit rate we achieved based upon actual units purchased. The OVRP arrangements do not equate to a minimum purchase commitment but rather, the arrangements are a volume pricing arrangement based upon actual volume purchased. In substantially all instances, we have reciprocal agreements with our customers such that we will receive per-unit price adjustments, similar to the amounts we would subsequently owe to Microsoft if such OVRP volumes are not met. However, in the event a customer is unwilling or unable to pay us, we would be negatively impacted. Based upon the credit-worthiness of our customers, our historical OVRP experience with our customers and OVRP arrangements in general, we do not believe we will incur any material liability in the current or future periods relating to existing agreements.