Fair value measurements

12 Months Ended

Dec. 31, 2018

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following table presents the Company’s assets that are measured at fair value on a recurring basis (in thousands):



	December 31, 2018								December 31, 2017
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents and short-term investments:
Money market funds	$	7,481	$	—	$	—	$	7,481	$	11,561	$	—	$	—	$	11,561
U.S. government securities	—		—		—		—		750		—		—		750
Money market accounts	—		—		—		—		—		—		—		—
Total	$	7,481	$	—	$	—	$	7,481	$	12,311	$	—	$	—	$	12,311
Mutual funds held in Rabbi Trust, recorded in other long-term assets	$	465	$	—	$	—	$	465	$	523	$	—	$	—	$	523

The Company offers a Non-Qualified Deferred Compensation Plan (“NQDC Plan”) to a select group of its highly compensated employees to provide participants the opportunity to defer payment of certain compensation as defined in the NQDC Plan. A Rabbi Trust has been established to fund the NQDC Plan obligation, which was fully funded as of December 31, 2018 and 2017. The assets held by the Rabbi Trust are in the form of exchange traded mutual funds and are included in the Company’s other long-term assets on its consolidated balance sheets as of December 31, 2018 and 2017. Level 1 assets are determined by using quoted prices in active markets for identical assets. The fair values of Level 2 assets are priced based on quoted market prices for similar instruments or non-binding market prices that are corroborated by observable market data using inputs such as benchmark yields, broker quotes and other similar data.

The following table presents the Company’s liabilities that are measured at fair value on a recurring basis (in thousands):



	As of December 31, 2018								As of December 31, 2017
	Level 1		Level 2		Level 3		Total		Level 1		Level 2			Level 3		Total
Rusnano payment derivative	$	—	$	—	$	2,000	$	2,000	$	—	$	—		$	389	$	389
Foreign currency forward contracts	—		—		—		—		—		(43		)	—		(43		)
	$	—	$	—	$	2,000	$	2,000	$	—	$	(43	)	$	389	$	346

The fair value of the Rusnano payment derivative is based on the Company’s estimate (see Note 14). The fair values of the foreign currency forward contracts are based on quoted market rates and market observable data for similar instruments. There were no transfers between levels of the fair value hierarchy during the periods presented.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

In 2018, the Company wrote-off $1.0 million of property, plant and equipment within operating expenses. These assets were measured at fair value which is zero due to events or circumstances the Company identified as having significant impact on their fair value during 2018.

In 2018, the Company reclassified $2.5 million of property, plant and equipment within assets held for sale. The estimated fair value less direct costs of sale approximates the related carrying value of these assets as of December 31, 2018 (see Note 9).

There were no other assets or liabilities measured at fair value on a nonrecurring basis in 2018 and 2017.

Assets and Liabilities Not Measured at Fair Value

The carrying values of cash, restricted cash, accounts receivable, accounts payable, notes payable and short-term borrowing approximate their fair values due to the short-term nature and liquidity of these financial instruments.

The fair value of the Company’s long-term debt have been calculated using an estimate of the interest rate the Company would have had to pay on the issuance of liabilities with a similar maturity and discounting the cash flows at that rate which it considers to be a level 2 fair value measurement and was not materially different than the carrying value as of December 31, 2018 and 2017 as the interest rates approximated rates currently available to the Company. The fair values do not necessarily give an indication of the amount that the Company would currently have to pay to extinguish any of this debt.

- 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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