Long-Term Debt (Schedule of Future Minimum Payments for loan agreement) (Details)	Dec. 31, 2021 USD ($)
2022	$ 998,000
2023	998,000
2024	1,661,000
Total	3,657,000
Mortgage [Member]
2022
2023	70,000
2024	78,000
2025	81,000
2026	84,000
Thereafter	3,737,000
Total	$ 4,050,000

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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