XML 32 R26.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Cash, Cash Equivalents and Short-Term Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Cash And Cash Equivalents [Abstract] |
Schedule of Cash and Cash Equivalents and Short-Term Investments by Significant Investment Category | The following tables show the Company’s cash and cash equivalents and short-term investments by significant investment category as of December 31 (in thousands):
|  | 2019 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |  |  | Cash and Cash Equivalents |  |  | Short-Term Investments |
Cash |  | $ | 3,950 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,950 |  |  | $ | 3,950 |  |  | $ | — |
Level 1(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  |  | 5,500 |  |  |  | — |  |  |  | — |  |  |  | 5,500 |  |  |  | 5,500 |  |  |  | — |
U.S. treasury securities |  |  | 3,078 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 3,079 |  |  |  | — |  |  |  | 3,079 |
Subtotal |  |  | 8,578 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 8,579 |  |  |  | 5,500 |  |  |  | 3,079 |
Level 2(2): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  | 8,920 |  |  |  | — |  |  |  | — |  |  |  | 8,920 |  |  |  | 747 |  |  |  | 8,173 |
Corporate debt obligations |  |  | 5,922 |  |  |  | 5 |  |  |  | (1 | ) |  |  | 5,926 |  |  |  | — |  |  |  | 5,926 |
Repurchase agreements |  |  | 3,000 |  |  |  | — |  |  |  | — |  |  |  | 3,000 |  |  |  | 3,000 |  |  |  | — |
Asset-backed securities |  |  | 4,505 |  |  |  | 3 |  |  |  | — |  |  |  | 4,508 |  |  |  | — |  |  |  | 4,508 |
Subtotal |  |  | 22,347 |  |  |  | 8 |  |  |  | (1 | ) |  |  | 22,354 |  |  |  | 3,747 |  |  |  | 18,607 |
Total |  | $ | 34,875 |  |  | $ | 10 |  |  | $ | (2 | ) |  | $ | 34,883 |  |  | $ | 13,197 |  |  | $ | 21,686 |
|  | 2018 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |  |  | Cash and Cash Equivalents |  |  | Short-Term Investments |
Cash |  | $ | 3,044 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,044 |  |  | $ | 3,044 |  |  | $ | — |
Level 1(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  |  | 5,482 |  |  |  | — |  |  |  | — |  |  |  | 5,482 |  |  |  | 5,482 |  |  |  | — |
U.S. treasury securities |  |  | 1,988 |  |  |  | — |  |  |  | — |  |  |  | 1,988 |  |  |  | — |  |  |  | 1,988 |
Subtotal |  |  | 7,470 |  |  |  | — |  |  |  | — |  |  |  | 7,470 |  |  |  | 5,482 |  |  |  | 1,988 |
Level 2(2): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper |  |  | 10,639 |  |  |  | — |  |  |  | — |  |  |  | 10,639 |  |  |  | 2,095 |  |  |  | 8,544 |
Corporate debt obligations |  |  | 5,964 |  |  |  | — |  |  |  | (7 | ) |  |  | 5,957 |  |  |  | — |  |  |  | 5,957 |
Repurchase agreements |  |  | 3,000 |  |  |  | — |  |  |  | — |  |  |  | 3,000 |  |  |  | 3,000 |  |  |  | — |
Asset-backed securities |  |  | 3,682 |  |  |  | — |  |  |  | (3 | ) |  |  | 3,680 |  |  |  | — |  |  |  | 3,680 |
Subtotal |  |  | 23,285 |  |  |  | — |  |  |  | (10 | ) |  |  | 23,276 |  |  |  | 5,095 |  |  |  | 18,181 |
Total |  | $ | 33,799 |  |  | $ | — |  |  | $ | (10 | ) |  | $ | 33,790 |  |  | $ | 13,621 |  |  | $ | 20,169 |
(1) | Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities.
(2) | Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Schedule of Short-Term Investments | As of December 31 the Company’s short-term investments in a continuous unrealized loss position for 12 months or less are as follows (in thousands):
Description of securities |  | Estimated fair value |  |  | Unrealized losses |
2019 |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 1,218 |  |  | $ | (1 | )
Corporate debt obligations |  |  | 1,428 |  |  |  | (1 | )
Asset-backed securities |  |  | 753 |  |  |  | — |
Total |  | $ | 3,399 |  |  | $ | (2 | )
2018 |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 1,988 |  |  | $ | — |
Corporate debt obligations |  |  | 5,957 |  |  |  | (7 | )
Asset-backed securities |  |  | 3,032 |  |  |  | (3 | )
Total |  | $ | 10,977 |  |  | $ | (10 | )

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=118942371&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration