Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 10,014,000	$ 7,161,000
Accounts receivable, net of allowance for doubtful accounts of $214,000 and at December 31, 2020	826,000	1,382,000
Inventories	5,334,000	5,877,000
Prepaid expenses and other current assets	730,000	878,000
Total current assets	16,904,000	15,298,000
Inventories, non-current	2,486,000	1,221,000
Equipment and leasehold improvements, net	1,337,000	1,424,000
Right-of-use operating lease assets, net	693,000	730,000
Goodwill	781,000	781,000
Other intangible assets, net	1,342,000	1,358,000
Other assets	48,000	48,000
Total assets	23,591,000	20,860,000
Current liabilities:
Accounts payable	1,328,000	1,366,000
Accrued payroll and related expenses	473,000	349,000
Deferred revenue – short-term	696,000	608,000
Convertible promissory note – related party, net	6,762,000
Interest payable – related party	550,000	2,082,000
Note payable – short-term		447,000
Other current liabilities	682,000	1,291,000
Total current liabilities	10,491,000	6,143,000
Convertible promissory note – related party, net		5,935,000
Convertible promissory note, net	572,000	493,000
Note payable		199,000
Operating lease obligations – long-term	558,000	604,000
Deferred revenue – long-term	1,520,000	1,596,000
Other noncurrent liabilities	20,000	20,000
Total liabilities	13,161,000	14,990,000
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value; 2,000,000 shares authorized, none outstanding
Common stock, $0.001 par value; 350,000,000 shares authorized; 11,911,784 issued and outstanding (8,934,952 at December 31, 2020)	12,000	9,000
Additional paid in capital	266,145,000	259,058,000
Accumulated deficit	(255,696,000)	(253,283,000)
Accumulated other comprehensive loss	17,000	16,000
Total ThermoGenesis Holdings, Inc. stockholders’ equity	10,478,000	5,800,000
Noncontrolling interests	(48,000)	70,000
Total equity	10,430,000	5,870,000
Total liabilities and equity	$ 23,591,000	$ 20,860,000