Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 9 - Contingencies (Details Textual) - USD ($)	Dec. 31, 2022	Oct. 27, 2022	Dec. 21, 2021
Indemnity Agreement [Member]
Debt Instrument, Maximum Reimbursement and Indemnification Amount	$ 5,700,000		$ 5,000,000
Debt Instrument, Additional Reimbursement and Indemnification Amount		$ 700,000
Minnesota Racing Commission Bond [Member]
Debt Instrument, Face Amount	$ 500,000