Schedule of Disaggregation of Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Revenue	$ 3,604,000	$ 6,392,000	$ 11,538,000	$ 16,630,000
Printed Products Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	3,371,000	4,935,000	10,808,000	13,221,000
Packaging Printing and Fabrication [Member] \| Printed Products Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	3,336,000	4,841,000	10,402,000	12,839,000
Commercial and Security Printing [Member] \| Printed Products Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	35,000	78,000	375,000	334,000
Real Property Rental Income [Member] \| Printed Products Revenue Information [Member]
Segment Reporting [Line Items]
Revenue		16,000	31,000	48,000
Commercial Lending Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	5,000	7,000	17,000	37,000
Commercial Lending Revenue Information [Member] \| Net Investment Income [Member]
Segment Reporting [Line Items]
Revenue	5,000	7,000	17,000	37,000
Biotechnology Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	21,000	11,000	31,000	32,000
Biotechnology Revenue Information [Member] \| Retail Internet Sales [Member]
Segment Reporting [Line Items]
Revenue	21,000	11,000	31,000	32,000
Securities and Investment Management Revenue Information [Member]
Segment Reporting [Line Items]
Revenue	207,000	1,439,000	682,000	3,340,000
Securities and Investment Management Revenue Information [Member] \| Rental Income [Member]
Segment Reporting [Line Items]
Revenue	162,000	702,000	522,000	2,099,000
Securities and Investment Management Revenue Information [Member] \| Commission Income [Member]
Segment Reporting [Line Items]
Revenue	$ 45,000	$ 737,000	$ 160,000	$ 1,241,000