Note 1 - Overview and Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Employee Retention Credit Receivable	$ 6,314,468		$ 6,314,468
Funds Due To Organization	1,298,000	$ 2,000,000
Other Income [Member] | COVID-19 Relief Grants [Member]
Revenue from Grant	$ 0	515,000
Other Income [Member] | Convention Center Relief Grant Program [Member]
Revenue from Grant		$ 500,000