Fair Value Of Financial Instruments

12 Months Ended

Dec. 31, 2018

Fair Value Of Financial Instruments [Abstract]

3. Investments and Fair Value of Financial Instruments

Investments

The Company’s investments have been classified and accounted for as available-for-sale. The Company’s investments consisted of the following (in thousands):



		December 31, 2018
		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	8,481		—		(1)	$	8,480
Total assets measured at fair value	$	8,481	$	—	$	(1)	$	8,480



		December 31, 2017
		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Commercial paper	$	7,216	$	—	$	(6)	$	7,210
Corporate bonds		19,524		—		(33)		19,491
Asset-backed securities		7,994		—		(12)		7,982
Total assets measured at fair value	$	34,734	$	—	$	(51)	$	34,683

The contractual maturities of the Company’s investments were as follows (in thousands):



	December 31,
Investments	2018		2017
Due in one year	$	8,480	$	30,096
Due in one to two years		—		4,587
Total	$	8,480	$	34,683

Fair Value of Financial Instruments

The Company determines the fair value of its financial instruments based on a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels:

Level 1 - Observable inputs such as quoted prices in active markets for an identical asset or liability that the Company has the ability to access as of the measurement date. Financial assets and liabilities utilizing Level 1 inputs include money market funds.

Level 2 - Inputs, other than quoted prices included within Level 1, which are directly observable for the asset or liability or indirectly observable through corroboration with observable market data. Financial assets and liabilities utilizing Level 2 inputs include commercial paper, corporate bonds and asset-backed securities.

Level 3 - Unobservable inputs in which there is little or no market data for the asset or liability which requires the reporting entity to develop its own assumptions. The Company did not classify any of its investments within Level 3 of the fair value hierarchy.

The following table sets forth the fair value of the Company’s financial assets measured on a recurring basis (in thousands):



			December 31, 2018
Assets	Classification		Level 1		Level 2		Level 3		Total
Money market funds	Cash and cash equivalents	$	50,703		—		—	$	50,703
U.S. Treasury Securities	Investments		—		8,480		—		8,480
Total assets measured at fair value		$	50,703	$	8,480	$	—	$	59,183



			December 31, 2017
Assets	Classification		Level 1		Level 2		Level 3		Total
Money market funds	Cash and cash equivalents	$	2,758	$	—	$	—	$	2,758
Commercial paper	Investments		—		7,210		—		7,210
Corporate bonds	Investments		—		19,491		—		19,491
Asset-backed securities	Investments		—		7,982		—		7,982
Total assets measured at fair value		$	2,758	$	34,683	$	—	$	37,441

During year ended December 31, 2018 and 2017, the Company did not record impairment charges related to its marketable investments. During the year ended December 31, 2018 and 2017, the Company did not have any transfers between Level 1, Level 2 or Level 3 of the fair value hierarchy. Additionally, the Company did not have any financial assets and liabilities measured at fair value on a non-recurring basis as of December 31, 2018 or December 31, 2017.

- 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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