Fair Value Measurements

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

Financial instruments consist of cash and cash equivalents, short-term investments, an equity investment, accounts receivable, accounts payable, accrued liabilities, and debt. Short-term investments and the equity investment are stated at fair value. Cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities, and debt, are stated at their carrying value, which approximates fair value due to the short time to the expected receipt or payment date of such amounts.

ASC 820, Fair Value Measurements, establishes a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The three levels of the fair value hierarchy under the ASC 820 are described as follows:

Level 1—Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2—Inputs to the valuation methodology include:

• Quoted prices for similar assets or liabilities in active markets;

• Quoted prices for identical or similar assets or liabilities in inactive markets;

• Inputs other than quoted prices that are observable for the asset or liability;

• Inputs that are derived principally from or corroborated by observable market data by correlation or other means; and

• If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

Level 3—Inputs to the valuation methodology are unobservable, supported by little or no market activity, and are significant to the fair value measurement.

Transfers between levels, if any, are recorded as of the beginning of the reporting period in which the transfer occurs. There were no transfers between Levels 1, 2 or 3 for any of the periods presented.

The following tables represent the fair value hierarchy for those assets and liabilities that the Company measures at fair value on a recurring basis (in thousands):

	Fair Value Measurements at March 31, 2020 Using:
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Financial assets included within cash and cash equivalents
Money market funds	$	6,616	$	6,616	$	—	$	—
Short-term investments - certificates of deposit		15,162		—		15,162		—
Short-term investments - commercial paper		25,533		—		25,533		—
Financial assets included within short-term investments
Short-term investments - certificates of deposit		10,101		—		10,101		—
Short-term investments - commercial paper		31,469		—		31,469		—
Available-for-sale investment		151		151		—		—
Total assets	$	89,032	$	6,767	$	82,265	$	—

	Fair Value Measurements at December 31, 2019 Using:
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Financial assets included within cash and cash equivalents
Money market funds	$	5,460	$	5,460	$	—	$	—
Short-term investments - certificates of deposit		15,110		—		15,110		—
Short-term investments - commercial paper		51,017		—		51,017		—
Financial assets included within short-term investments
Short-term investments - certificates of deposit		10,054		—		10,054		—
Short-term investments - commercial paper		22,835		—		22,835		—
Available-for-sale investment		250		250		—		—
Total assets	$	104,726	$	5,710	$	99,016	$	—

The Company classifies its money market funds within Level 1 because it uses quoted market prices to determine their fair value. The Company classifies its commercial paper, corporate notes, certificates of deposit, and U.S. government bonds within Level 2 because it uses quoted prices for similar assets or liabilities in active markets and each has a specified term and all Level 2 inputs are observable for substantially the full term of each instrument.

The Company owns 68,000 shares of PharmaEssentia, a company publicly traded on the Taiwan OTC Exchange. As of March 31, 2020 and December 31, 2019, the Company’s investment in PharmaEssentia was valued at the reported closing price on such dates. This investment is classified as a Level 1 investment and is recorded as an available-for-sale investment within short-term investments on the Company’s condensed consolidated balance sheet.