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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2019
Financial Instruments [Abstract] |
Summary Of Financial Instruments Measured At Fair Value |
December 31, 2019 | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |
Money market funds | $ | 1,472 |  |  | -- |  |  | -- |  | $ | 1,472
Restricted securities: |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | 528 |  |  | -- |  |  | -- |  |  | 528
Endospan Loan |  | -- |  |  | -- |  |  | 358 |  |  | 358
Total assets | $ | 2,000 |  | $ | -- |  | $ | 358 |  | $ | 2,358
December 31, 2018 | Level 1 |  | Level 2 |  | Level 3 |  | Total
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | 1,445 |  |  | -- |  |  | -- |  |  | 1,445
Restricted securities: |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | 747 |  |  | -- |  |  | -- |  |  | 747
Total assets | $ | 2,192 |  | $ | -- |  | $ | -- |  | $ | 2,192
Reconciliation Of Changes In Fair Value Of Level 3 Liabilities |
|  |  |  |  |  |  |  |  |  |  | Endospan Loan
Balance as of December 31, 2018 |  |  |  |  |  |  |  |  |  | $ | --
Initial value of Endospan Loan |  |  |  |  |  |  |  |  |  |  | 358
Change in valuation of Endospan Loan |  |  |  |  |  |  |  |  |  |  | --
Balance as of December 31, 2019 |  |  |  |  |  |  |  |  |  | $ | 358

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258 + Details
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