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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Investments All Other Investments [Abstract]

Cash Equivalents, Restricted Cash and Short-Term Investments Classified as Available-for-sale Securities

Cash equivalents, restricted cash and short-term investments (debt securities) which are classified as available-for-sale securities, consisted of the following (in thousands):

June 30, 2019		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
Money market funds (cash equivalents)		$	16,858			$	—			$	—			$	16,858
U.S. government agency securities			57,870				34				—				57,904
Federal agency securities			18,660				23				—				18,683
Restricted cash (money market funds)			50				—				—				50
Total financial assets		$	93,438			$	57			$	—			$	93,495
Classified as:
Cash and cash equivalents														$	16,858
Short-term investments															76,587
Restricted cash (money market funds)															50
														$	93,495

December 31, 2018		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
Money market funds (cash equivalents)		$	29,090			$	—			$	—			$	29,090
Federal agency securities (cash equivalents)			999				—				—				999
Restricted cash (money market funds)			50				—				—				50
U.S. government agency securities			74,144				1				(6	)			74,139
Agency securities			14,774				1				—				14,775
Total financial assets		$	119,057			$	2			$	(6	)		$	119,053
Classified as:
Cash and cash equivalents														$	30,089
Short-term investments															88,914
Restricted cash (money market funds)															50
														$	119,053

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- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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