Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 9,384,000	$ 11,431,000
Restricted cash	100,000
Accounts receivable, net	2,688,000	3,068,000
Inventory, net	2,543,000	2,442,000
Marketable securities	2,974,000	2,442,000
Assets held for sale		45,158,000
Prepaid expenses and other current assets	889,000	1,141,000
Total current assets	18,883,000	66,695,000
Property, plant and equipment, net	5,141,000	5,381,000
Investments in real estate, net	35,446,000
Other investments	500,000	500,000
Investment, equity method	124,000	129,000
Marketable securities	6,791,000	6,333,000
Other assets	964,000	162,000
Right-of-use assets	6,135,000	6,465,000
Goodwill	1,769,000	1,769,000
Other intangible assets, net	17,640,000	18,890,000
Total assets	93,393,000	106,453,000
Current liabilities:
Accounts payable	2,506,000	2,793,000
Accrued expenses and deferred revenue	2,616,000	2,651,000
Other current liabilities	4,537,000	4,193,000
Current portion of lease liability	593,000	606,000
Current portion of long-term debt on assets held-for-sale, net		53,534,000
Total current liabilities	53,832,000	65,028,000
Long-term debt, net	6,172,000	2,398,000
Long term lease liability	6,011,000	6,311,000
Total liabilities	66,015,000	73,737,000
Commitments and contingencies (Note 12)
Stockholders’ equity
Preferred stock, $.02 par value; 47,000 shares authorized, zero shares issued and outstanding (zero on December 31, 2024); *Liquidation value $1,000 per share, zero aggregate. zero on December 31, 2024).
Common stock, $.02 par value; 200,000,000 shares authorized, 9,092,518 shares issued and outstanding on June 30, 2025 (8,092,518 on December 31, 2024)	182,000	161,000
Additional paid-in capital	325,488,000	323,150,000
Accumulated deficit	(310,001,000)	(303,072,000)
Total stockholders’ equity of the Company	15,669,000	20,239,000
Non-controlling interest in subsidiaries	11,709,000	12,477,000
Total stockholders’ equity	27,378,000	32,716,000
Total liabilities and stockholders’ equity	93,393,000	106,453,000
Nonrelated Party [Member]
Current assets:
Current portion of notes receivable		240,000
Notes receivable		17,000
Current liabilities:
Current portion of long-term debt	42,964,000	642,000
Related Party [Member]
Current assets:
Current portion of notes receivable	305,000	337,000
Notes receivable		112,000
Current liabilities:
Current portion of long-term debt	$ 616,000	$ 609,000