3.	Fair Value Measurement of Assets and Liabilities

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price). A fair value measurement reflects the assumptions market participants would use in pricing an asset or liability based on the best available information. These assumptions include the risk inherent in a particular valuation technique (such as a pricing model) and the risks inherent in the inputs to the model.

We classify our inputs to measure fair value using a three-level hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. The categorization of financial instruments within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The hierarchy is prioritized into three levels (with Level 3 being the lowest) defined as follows:

Level 1: Pricing inputs are based on quoted market prices for identical assets or liabilities in active markets (e.g., NYSE). Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2: Pricing inputs include benchmark yields, trade data, reported trades and broker dealer quotes, two-sided markets and industry & economic events, yield to maturity, Municipal Securities Rule Making Board reported trades and vendor trading platform data. Level 2 includes those financial instruments that are valued using various pricing services and broker pricing information including Electronic Communication Networks and broker feeds.

Level 3: Pricing inputs include significant inputs that are generally less observable from objective sources, including the Company’s own assumptions.

At December 31, 2013, the Company did not have any securities in the Level 3 category. The Company reviews the fair value hierarchy classification on a quarterly basis. We validate the quoted market prices provided by our primary pricing service by comparing their assessment of the fair values of our investments by using a third party investment manager. The third party investment manager uses similar techniques to our primary pricing service to derive the pricing describe above. Changes in the observability of valuation inputs may result in a reclassification of levels for certain securities within the fair value hierarchy.

The following table summarizes the Company’s financial instruments measured at fair value on a recurring basis in accordance with the authoritative guidance for fair value measurements as of December 31, 2013 (in thousands):


Description	Balance as of December 31, 2013		Level 1		Level 2
Assets:
Cash equivalents
US Treasury securities	$	487	$	0	$	487

Total cash equivalents		487		0		487

Short-term marketable securities:
Available-for-sale:
Government agency securities		2,351		0		2,351
Municipal bonds		2,829		0		2,829
Certificates of deposit		3,360		0		3,360
Corporate debentures / bonds		10,638		0		10,638

Total short-term marketable securities		19,178		0		19,178

Long-term marketable securities:
Available-for-sale:
Certificates of deposit		1,300		0		1,300
Corporate debentures / bonds		2,143		0		2,143

Total long-term marketable securities		3,443		0		3,443

Total financial assets	$	23,108	$	0	$	23,108


Description	Balance as of December 31, 2012		Level 1		Level 2
Assets:
Cash equivalents
Money market funds	$	47	$	47	$	0
US Treasury securities		3,429		0		3,429

Total cash equivalents		3,476		47		3,429

Short-term marketable securities:
Available-for-sale:
Government agency securities		3,266		0		3,266
Municipal bonds		11,260		0		11,260
Certificates of deposit		6,205		0		6,205
Corporate debentures / bonds		17,333		0		17,333

Total short-term marketable securities		38,064		0		38,064

Long-term marketable securities:
Available-for-sale:
Certificates of deposit		1,201		0		1,201

Total long-term marketable securities		1,201		0		1,201

Total financial assets	$	42,741	$	47	$	42,694

There were no transfers between Level 1 and Level 2 securities during the years ended December 31, 2013 and 2012. All of our long-term marketable debt securities had maturities of between one and two years in duration at December 31, 2013.

As of December 31, 2013 and 2012, the Company had no outstanding foreign currency exchange forward contracts.

For the years ended December 31, 2013, 2012 and 2011, the Company recorded gains of $0, $0, $8,000, respectively, on its Euro-denominated foreign exchange forward contracts. During the years ended December 31, 2013, 2012 and 2011, the Company recorded foreign currency losses on foreign currency denominated transactions of approximately $183,000, $51,000, and $836,000, respectively. The loss during the years ended December 31, 2013 and 2012 primarily related to foreign currency losses on foreign currency denominated bank accounts. The loss during the year ended December 31, 2011 primarily related to foreign currency losses on South Korean won denominated trade payables.

All recorded gains and losses on foreign exchange transactions are recorded in other income (expense), net, within the consolidated statements of operations.