v3.19.2

Note 2 - Investments and Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Cash, Cash Equivalents and Investments [Table Text Block]

		As of June 30 , 201 9
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Cash and cash equivalents:
Cash		$	3,018			$	—			$	—			$	3,018
Money market funds			286				—				—				286
Commercial paper			61,767				—				—				61,767
Total cash and cash equivalents			65,071				—				—				65,071
Short-term investments:
Commercial paper		$	26,475			$	—			$	—			$	26,475
Total cash, cash equivalents and investments		$	91,546			$	—			$	—			$	91,546

		As of December 31 , 201 8
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
Cash and cash equivalents:
Cash		$	2,037			$	—			$	—			$	2,037
Money market funds			1,436				—				—				1,436
U.S. government agency securities			10,181				—				—				10,181
Commercial paper			74,321				—				—				74,321
Total cash and cash equivalents			87,975				—				—				87,975
Short-term investments:
U.S. government agency securities		$	1,497			$	—			$	—			$	1,497
Commercial paper			16,243				—				—				16,243
Total marketable securities and commercial paper			17,740				—				—				17,740
Total cash, cash equivalents and investments		$	105,715			$	—			$	—			$	105,715

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

		As of June 30 , 2019
		Fair Value				Level I				Level II				Level III
Assets
Money market funds		$	286			$	286			$	—			$	—
Commercial paper			88,242				—				88,242				—
Total assets measured at fair value		$	88,528			$	286			$	88,242			$	—
Liabilities
Contingent put option liability		$	657			$	—			$	—			$	657
Total liabilities measured at fair value		$	657			$	—			$	—			$	657

		As of December 31 , 201 8
		Fair Value				Level I				Level II				Level III
Assets
Money market funds		$	1,436			$	1,436			$	—			$	—
U.S. government agency securities			11,678				—				11,678				—
Commercial paper			90,564				—				90,564				—
Total assets measured at fair value		$	103,678			$	1,436			$	102,242			$	—
Liabilities
Contingent put option liability		$	121			$	—			$	—			$	121
Total liabilities measured at fair value		$	121			$	—			$	—			$	121

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

		Three Months Ended June 30, 201 9				Six Months Ended June 30, 201 9
Fair value—beginning of period		$	98			$	121
Fair value of contingent put option associated with the Loan Agreement			657				657
Change in fair value of contingent put option associated with the Prior Agreement			(98	)			(121	)
Fair value—end of period		$	657			$	657

		Three Months Ended June 30, 201 8				Six Months Ended June 30, 201 8
Fair value—beginning of period		$	186			$	207
Change in fair value of contingent put option associated with the Prior Agreement			(20	)			(41	)
Fair value—end of period		$	166			$	166

X

- Definition

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

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Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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