Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 9,238		$ 20,993
Short-term investments	0		22,764
Accounts receivable, net	1,165		1,363
Notes receivable	0		6,109
Prepaid expenses and other current assets	1,133		443
Current assets held for sale - discontinued operations	5,301		1,543
Total current assets	16,837		53,215
Noncurrent assets:
Property and equipment, net	5,576		371
Right of use asset, net	747		0
Restricted cash	182		182
Intangible assets: In-process research and development	50,000		0
Goodwill	24,062		0
Other assets, net	487		175
Noncurrent assets of discontinued operations	0		4,148
Total assets	97,891		58,091
Current liabilities:
Accounts payable and accrued expenses	6,107		1,541
Lease liability	46		0
Accrued protocol expense	322		233
Accrued radioactive waste disposal	480		571
Accrued payroll and related taxes	3,128		212
Accrued vacation	460		285
Note payable, current	49		0
Current liabilities of discontinued operations	5,072		276
Total current liabilities	15,664		3,118
Noncurrent liabilities:
Lease liability	780		0
Notes payable – long-term portion	1,676	[1]	0
Noncurrent liabilities of discontinued operations	0		331
Deferred tax liability	4,592		0
Total liabilities	22,712		3,449
Commitments and contingencies (Note 16)
Stockholders' equity:
Preferred stock, $.001 par value; 7,000,000 shares authorized: Series B: 5,000,000 shares allocated; no shares issued and outstanding	0		0
Common stock, $.001 par value; 750,000,000 shares authorized; 281,809,852 and 142,112,766 shares issued and outstanding	282		142
Additional paid-in capital	227,337		160,432
Accumulated deficit	(152,440)		(105,932)
Total stockholders' equity	75,179		54,642
Total liabilities and stockholders' equity	$ 97,891		$ 58,091

[1] The notes payable were assumed by the Company effective upon the closing of the Merger with Viewpoint on February 3, 2023.