Represents the minority interest acquired through exchange.

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Represents the ownership in subsidiary exchanged.

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A measure of both a company's efficiency and its short-term financial health. The working capital is calculated as: Working Capital= Current Asset - Current Liabilities.

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Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Note 1 - Description of Business and Basis of Presentation (Details Textual)			3 Months Ended	12 Months Ended
	Jun. 04, 2019	Jan. 01, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) shares	Mar. 31, 2020 USD ($) shares	Nov. 26, 2019 USD ($)	Jun. 30, 2019 shares	Mar. 31, 2017 USD ($)
Number of Reportable Segments				2
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance				$ 530,000	$ 389,000
Reorganization of Subsidiary and Related Change in Non-controlling Interest
Common Stock, Shares Authorized (in shares) \| shares				350,000,000	350,000,000		350,000,000
Cash and Cash Equivalents, at Carrying Value, Ending Balance				$ 3,157,000	$ 5,719,000
Working Capital					6,914,000
Retained Earnings (Accumulated Deficit), Ending Balance				$ (236,932,000)	(241,534,000)
Boyalife Investment Fund II, Inc. [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					10,000,000			$ 10,000,000
Long-term Line of Credit, Total					$ 7,582,000
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	10
ImmuneCyte [Member]
Equity Method Investment, Ownership Percentage				18.87%	18.87%	20.00%
Line of Credit Facility, Maximum Borrowing Capacity						$ 1,000,000
ImmuneCyte [Member] \| HealthBanks Biotech [Member]
Equity Method Investment, Ownership Percentage				75.47%		80.00%
Noncontrolling Interest [Member]
Reorganization of Subsidiary and Related Change in Non-controlling Interest		$ 2,843,000	$ 2,843,000
CAR-TXpress [Member]
Noncontrolling Interest, Ownership Percentage by Parent		80.00%		80.00%	80.00%
Minority Interest Acquired Through Exchange		20.00%
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance		$ 1,100,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					20.00%
ThermoGenesis [Member]
Noncontrolling Interest, Ownership Percentage by Parent		100.00%
Ownership in Subsidiary Exchanged		20.00%
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance		$ (1,711,000)