Sale and Leaseback Transaction (Details) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2006	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2006	Oct. 24, 2006
Leases [Abstract]
Purchase price					$ 6,200,000
Realized gain on sale	$ 1,051,000			$ 300,000
Recognized remaining term, description		The remaining $751,000 is being recognized ratably over the remaining term of the twenty - year lease at approximately $38,000 per year.
Unrecognized gain on sale		$ 181,000	$ 219,000
Purchaser for the property, description		Simultaneous with the closing of the sale of the Bay Shore Property, the Company entered into a 20-year triple- net lease (the “Lease”) expiring in September 2026 with the purchaser for the property. Base annual rent is approximately $540,000 for the first five years, $560,000 for the sixth year, and thereafter increases 3% per year. The Lease grants the Company an option to renew the Lease for an additional period of five years. The Company has on deposit with the purchaser $89,000 as security for the performance of its obligations under the Lease. In addition, at December 31, 2021, the Company had on deposit $150,000 with the purchaser as security for the completion of certain repairs and upgrades to the Bay Shore Property.