Note 3 - Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2023
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	3. Summary of Significant Accounting Polices There have been no material changes in the Company’s significant accounting policies to those disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such Securities and Exchange Commission (“SEC”) rules and regulations and accounting principles applicable for interim periods. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of the results for the periods presented have been included. Events subsequent to the balance sheet date have been evaluated for inclusion in the accompanying condensed consolidated financial statements through the date of issuance. Operating results for the three and six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for the Company’s fiscal year ending December 31, 2023. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in ThermoGenesis Holdings’ Annual Report on Form 10-K for the year ended December 31, 2022. Principles of Consolidation The consolidated financial statements include the accounts of ThermoGenesis Holdings and its wholly-owned subsidiaries, ThermoGenesis Corp. and TotipotentRX Cell Therapy, Pvt. Ltd and ThermoGenesis Corp’s majority-owned subsidiary, CARTXpress Bio, Inc (“CARTXpress Bio”). All significant intercompany accounts and transactions have been eliminated upon consolidation. The 20% ownership interest of CARTXpress Bio that is not owned by ThermoGenesis Holdings is accounted for as a non-controlling interest as the Company has an 80% ownership interest in CARTXpress Bio. Earnings or losses attributable to other stockholders of a consolidated affiliated company are classified separately as "non-controlling interest" in the Company's consolidated statements of operations. Net loss attributable to non-controlling interests reflects only its share of the after-tax earnings or losses of an affiliated company. The Company's condensed consolidated balance sheets reflect non-controlling interests within the equity section. Recently Adopted Accounting Standards On January 1, 2022, we adopted Accounting Standards Update (“ASU”) 2020-06 “Debt-Debt with Conversion and Other Options (“Subtopic 470-20”) and Derivatives and Hedging-Contracts in Entity’s Own Equity (“Subtopic 815-40”): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” using the modified retrospective method. ASU 2020-06 provides guidance on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. Specifically, the ASU eliminated the need for the Company to assess whether a contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher than shareholder’s rights, and (3) whether collateral is required. The Company recognized a cumulative effect of $9,739,000 of initially applying the ASU as an adjustment to the January 1, 2022 opening balance of accumulated deficit. Due to the recombination of the equity conversion component of our convertible debt outstanding, the 2022 opening balance of additional paid in capital was reduced by $10,681,000 and the debt discounts of the convertible promissory notes were reduced $942,000. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (“Topic 326”). The ASU introduced a new accounting model, the Current Expected Credit Losses model (“CECL”), which requires earlier recognition of credit losses and additional disclosures related to credit risk. The CECL model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. ASU 2016-13 is effective for annual reporting periods beginning after December 15, 2022, including interim reporting periods within those annual reporting periods. The Company adopted the standard effective January 1, 2023. Based on the composition of the Company’s trade receivables and unbilled revenue, and expected future losses, the adoption of ASU 2016-13 did not have a material impact on its condensed consolidated financial statements.

Note 3 - Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2023

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

3. Summary of Significant Accounting Polices

There have been no material changes in the Company’s significant accounting policies to those disclosed in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. Accordingly, certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such Securities and Exchange Commission (“SEC”) rules and regulations and accounting principles applicable for interim periods. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of the results for the periods presented have been included. Events subsequent to the balance sheet date have been evaluated for inclusion in the accompanying condensed consolidated financial statements through the date of issuance.

Operating results for the three and six months ended June 30, 2023 are not necessarily indicative of the results that may be expected for the Company’s fiscal year ending December 31, 2023. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in ThermoGenesis Holdings’ Annual Report on Form 10-K for the year ended December 31, 2022.

Principles of Consolidation

The consolidated financial statements include the accounts of ThermoGenesis Holdings and its wholly-owned subsidiaries, ThermoGenesis Corp. and TotipotentRX Cell Therapy, Pvt. Ltd and ThermoGenesis Corp’s majority-owned subsidiary, CARTXpress Bio, Inc (“CARTXpress Bio”). All significant intercompany accounts and transactions have been eliminated upon consolidation.

The 20% ownership interest of CARTXpress Bio that is not owned by ThermoGenesis Holdings is accounted for as a non-controlling interest as the Company has an 80% ownership interest in CARTXpress Bio. Earnings or losses attributable to other stockholders of a consolidated affiliated company are classified separately as "non-controlling interest" in the Company's consolidated statements of operations. Net loss attributable to non-controlling interests reflects only its share of the after-tax earnings or losses of an affiliated company. The Company's condensed consolidated balance sheets reflect non-controlling interests within the equity section.

Recently Adopted Accounting Standards

On January 1, 2022, we adopted Accounting Standards Update (“ASU”) 2020-06 “Debt-Debt with Conversion and Other Options (“Subtopic 470-20”) and Derivatives and Hedging-Contracts in Entity’s Own Equity (“Subtopic 815-40”): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” using the modified retrospective method. ASU 2020-06 provides guidance on how to account for contracts on an entity’s own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. Specifically, the ASU eliminated the need for the Company to assess whether a contract on the entity’s own equity (1) permits settlement in unregistered shares, (2) whether counterparty rights rank higher than shareholder’s rights, and (3) whether collateral is required. The Company recognized a cumulative effect of $9,739,000 of initially applying the ASU as an adjustment to the January 1, 2022 opening balance of accumulated deficit. Due to the recombination of the equity conversion component of our convertible debt outstanding, the 2022 opening balance of additional paid in capital was reduced by $10,681,000 and the debt discounts of the convertible promissory notes were reduced $942,000.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (“Topic 326”). The ASU introduced a new accounting model, the Current Expected Credit Losses model (“CECL”), which requires earlier recognition of credit losses and additional disclosures related to credit risk. The CECL model utilizes a lifetime expected credit loss measurement objective for the recognition of credit losses at the time the financial asset is originated or acquired. ASU 2016-13 is effective for annual reporting periods beginning after December 15, 2022, including interim reporting periods within those annual reporting periods. The Company adopted the standard effective January 1, 2023. Based on the composition of the Company’s trade receivables and unbilled revenue, and expected future losses, the adoption of ASU 2016-13 did not have a material impact on its condensed consolidated financial statements.