Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 2,547	$ 4,319
Prepaid expenses and other current assets	792	1,060
Total current assets	3,339	5,379
Property and equipment, net	162	183
Restricted cash	9	150
Operating lease right-of-use assets	1,343	1,444
Intangible assets	25,250	25,250
Total assets	30,103	32,406
Current Liabilities:
Accounts payable	1,689	809
Accrued expenses	2,125	1,618
Operating lease liabilities - current portion	446	436
Loans payable	0	233
Other current liabilities	725	900
Total current liabilities	4,985	3,996
Operating lease liabilities - non-current portion	1,038	1,161
Restructured debt liability - contingent milestone payments	0	15,000
Other liabilities	3,800	3,800
Deferred tax liabilities	4,859	5,058
Total liabilities	14,682	29,015
Stockholders’ Equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; 0 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively	0	0
Common stock, $0.001 par value; 120,000,000 shares authorized; 510,181 and 333,145 shares issued at March 31, 2024 and December 31, 2023, respectively; 510,180 and 333,144 shares outstanding at March 31, 2024 and December 31, 2023, respectively	1	0
Additional paid-in capital	853,078	851,268
Accumulated deficit	(834,604)	(844,823)
Treasury stock (at cost); 1 share	(3,054)	(3,054)
Total stockholders’ equity	15,421	3,391
Total liabilities & stockholders’ equity	$ 30,103	$ 32,406