The minimum qualified offering amount for preferred stock to be mandatorily converted.

No definition available.

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- Definition

The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482913/230-10-50-4

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-URI https://asc.fasb.org//1943274/2147482913/230-10-50-3

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482913/230-10-50-5

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

+ Details

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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Period Type:	instant

- Definition

Per share conversion price of preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:perShareItemType
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- Details

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- Details

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Note 16 - Subsequent Event - Conversion of Biostage Series E Preferred Stock to Common Stock (Details Textual) - USD ($)			3 Months Ended
	Apr. 07, 2023	Apr. 05, 2023	Mar. 31, 2023	Dec. 31, 2022
Biostage [Member] \| Series E Convertible Preferred Stock into Common Stock [Member]
Conversion of Stock, Amount Issued			$ 200,000
Conversion of Stock, Shares Issued (in shares)			31,933
Biostage [Member] \| Convertible Preferred Stock [Member]
Preferred Stock, Mandatory Conversion, Minimum Qualified Offering Amount				$ 4,000,000
Subsequent Event [Member] \| Biostage [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner	5.00%
Subsequent Event [Member] \| Biostage [Member] \| Series E Convertible Preferred Stock into Common Stock [Member]
Conversion of Stock, Shares Issued (in shares)	675,000
Subsequent Event [Member] \| Biostage [Member] \| Convertible Preferred Stock [Member]
Preferred Stock, Convertible, Conversion Price (in dollars per share)	$ 6.00
Subsequent Event [Member] \| Private Placement [Member] \| Biostage [Member]
Conversion of Stock, Amount Issued		$ 6,000,000.0
Shares Issued, Price Per Share (in dollars per share)		$ 6.00
Subsequent Event [Member] \| Private Placement [Member] \| Biostage [Member] \| Convertible Preferred Stock [Member]
Preferred Stock, Mandatory Conversion, Minimum Qualified Offering Amount		$ 4,000,000.0