Note 6 - Commitments and Contingencies (Details Textual)	9 Months Ended
	Sep. 30, 2021 USD ($) yr
Off Track Betting Payment Per Operating Year | $	$ 700,000
Off-track Betting Payment Per Operating Year Percentage Of Net Pretax Profit Payment	20.00%
Minimum Number Of Payments Provided Conditions Are Met (Year) | yr	5