Note 5 - Fair Value Measurements

The following table represents the Company's fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis:


	Fair Value at December 31, 2013						Fair Value at December 31, 2012
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets
Auction rate security	$	1,790	$	-	$	-	$	-	$	1,584	$	-
Money market funds		100,049		-		-		11,970		-		-
Municipal bonds		-		-		-		-		1,671		-
Corporate debt securities		-		26,978		-		-		31,361		-
Total cash equivalents and investments	$	101,839	$	26,978	$	-	$	11,970	$	34,616	$	-
Liabilities
Warrant liabilities	$	-	$	-	$	-	$	-	$	-	$	267

During the years ended December 31, 2013 and 2012, the Company did not have any transfers between levels other than the Company's auction rate security that was assessed as level 1 at December 31, 2013 due to its sale in January 2014.

The following table provides a reconciliation of the beginning and ending balance of Level 3 assets and liabilities measured on a recurring basis for the year ended December 31, 2013 (in thousands):


	Fair Value Measurements of Warrants Using Significant Unobservable Inputs (Level 3)
Balance at December 31, 2012	$	267
Change in fair value of Warrant liability		(267	)
Balance at December 31, 2013	$	-

The amounts in the Company's consolidated balance sheet for accounts receivables, unbilled receivables and accounts payable approximate fair value due to their short-term nature. Based on borrowing rates available to the Company, the fair value of capital leases and notes payable approximates their carrying value.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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