Income Taxes (Schedule of Deferred Tax Assets (Liabilities)) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net operating losses	$ 5,437,000	$ 6,043,000
Lease liabilities	749,000	722,000
Share-based compensation		61,000
Intangible assets		2,000
Investment in RISE	140,000
Accrued compensation	62,000
Other	13,000
Subtotal	6,401,000	6,828,000
Less: valuation allowance	(1,070,000)	(1,070,000)
Total Deferred tax assets	5,331,000	5,758,000
Deferred tax liabilities:
Fixed assets	(892,000)	(901,000)
Share-based compensation	(145,000)
Total Deferred tax liabilities	(1,037,000)	(901,000)
Total Deferred tax assets	$ 4,294,000	$ 4,857,000