The percentage of investment in reverse repurchase agreements which are collateralized by deposits.

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ 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
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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Financial Instruments - Fair value hierarchy (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2021	Jun. 02, 2021	Jan. 28, 2021	Dec. 31, 2020	Sep. 30, 2020
Financial Instruments
Fair value assets, transfers from Level 1 to Level 2	$ 0				$ 0
Fair value assets, transfers from Level 2 to Level 1	0				0
Fair value liabilities, transfers from Level 1 to Level 2	0				0
Fair value liabilities, transfers from Level 2 to Level 1	$ 0				$ 0
Common stock
Financial Instruments
Warrants to purchase number of shares		467,500
Quellis Biosciences, Inc \| Common stock
Financial Instruments
Warrants to purchase number of shares			30,856
Exercise price of warrants (in dollars per share)		$ 2.10	$ 2.10
Series X redeemable convertible preferred stock \| Common stock
Financial Instruments
Exercise price of warrants (in dollars per share)		$ 2.10
Series X redeemable convertible preferred stock \| Quellis Biosciences, Inc
Financial Instruments
Warrants to purchase number of shares			2,805
Exercise price of warrants (in dollars per share)			$ 341.70
Reverse repurchase agreements \| Government Securities and Obligations \| Minimum
Financial Instruments
Percentage of investment amount to collateralized deposits value	102.00%
Recurring
Assets:
Total assets	$ 40,847			$ 42,999
Recurring \| Level 1
Assets:
Total assets	1,847			22,999
Recurring \| Level 2
Assets:
Total assets	39,000			20,000
Recurring \| Money market funds
Assets:
Cash and cash equivalents	1,847			22,999
Recurring \| Money market funds \| Level 1
Assets:
Cash and cash equivalents	1,847			22,999
Recurring \| Reverse repurchase agreements
Assets:
Cash and cash equivalents	39,000
Short-term investments				20,000
Recurring \| Reverse repurchase agreements \| Level 2
Assets:
Cash and cash equivalents	$ 39,000
Short-term investments				$ 20,000