Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 3,078,955	$ 8,728,660
Accounts receivable	463,834	277,641
Inventories	504,380	480,803
Prepaid expense and other assets	442,513	512,078
Current assets of discontinued operations	77,726	79,249
Total current assets	4,567,408	10,078,431
Property and equipment, net	402,909	491,214
Intangibles, net	221,473	241,339
Lease right-of-use assets	2,203,935	2,598,091
Other long-term assets	102,509	105,509
Non-current assets of discontinued operations	0	902,665
Total assets	7,498,234	14,417,249
Current liabilities:
Accounts payable	1,141,922	1,334,064
Note payable	195,776	150,408
Accrued expenses and other liabilities	1,517,242	1,542,948
Derivative liability	1	1,376
Contract liabilities	257,393	302,499
Lease liability	496,788	444,897
Current liabilities of discontinued operations	207,644	174,839
Total current liabilities	3,816,766	3,951,031
Other long-term liabilities	10,046	5,459
Lease liability – net of current portion	1,704,453	2,130,977
Non-current liabilities of discontinued operations	0	58,002
Total liabilities	5,531,265	6,145,469
Stockholders’ equity:
Common stock, $.01 par value, 200,000,000 shares authorized, 6,666,993 and 4,062,853 shares outstanding as of September 30, 2024, and December 31, 2023, respectively	66,670	40,629
Additional paid-in capital	180,156,184	175,992,242
Accumulated deficit	(178,256,677)	(167,761,883)
Total stockholders’ equity	1,966,969	8,271,780
Total liabilities and stockholders’ equity	7,498,234	14,417,249
Series B Convertible Preferred Stock [Member]
Stockholders’ equity:
Series B Convertible Preferred Stock, $.01 par value, 2,300,000 shares authorized, 79,246 shares outstanding as of September 30, 2024, and December 31, 2023	$ 792	$ 792