Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 2,000,000	$ 4,177,000
Accounts receivable, net of allowance for credit losses of $4,000 ($149,000 at December 31, 2022)	949,000	1,865,000
Inventories	1,406,000	3,334,000
Prepaid expenses and other current assets	825,000	1,508,000
Total current assets	5,180,000	10,884,000
Inventories, non-current	0	1,003,000
Equipment and leasehold improvements, net	2,586,000	1,254,000
Goodwill		781,000
Intangible assets, net		1,286,000
Other assets	256,000	256,000
Total assets	11,232,000	19,386,000
Current liabilities:
Accounts payable	948,000	820,000
Accrued payroll and related expenses	376,000	399,000
Deferred revenue – short-term	670,000	782,000
Convertible promissory note – related party	7,278,000
Interest payable – related party	634,000	1,492,000
Convertible promissory note, net	378,000	962,000
Other current liabilities	1,478,000	1,277,000
Total current liabilities	11,762,000	11,509,000
Deferred revenue – long-term	127,000	911,000
Other noncurrent liabilities	27,000	17,000
Total liabilities	14,816,000	16,063,000
Commitments and Contingencies
Stockholders’ equity:
Common stock, $0.001 par value; 350,000,000 shares authorized; 3,617,886 issued and outstanding (1,037,138 at December 31, 2022)	4,000	1,000
Additional paid in capital	282,383,000	270,377,000
Accumulated deficit	(284,168,000)	(266,193,000)
Accumulated other comprehensive loss	114,000	111,000
Total ThermoGenesis Holdings, Inc. stockholders’ equity	(1,667,000)	4,296,000
Noncontrolling interests	(1,917,000)	(973,000)
Total equity / (deficit)	(3,584,000)	3,323,000
Total liabilities and equity / (deficit)	11,232,000	19,386,000
Nonrelated Party [Member]
Current assets:
Right-of-use operating lease assets, net	122,000	372,000
Current liabilities:
Operating lease obligations – long-term	0	131,000
Lease Agreement with Z3 Investment LLC [Member]
Current assets:
Right-of-use operating lease assets, net	3,088,000	$ 3,550,000
Current liabilities:
Operating lease obligations – long-term	$ 2,900,000