Note 5 - Operating Segments - Disaggregation of Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Net Revenues	$ 13,637,972	$ 9,225,542
Interest income, net	192,840	169,310
Depreciation	745,949	689,585
Segment income (loss) before income taxes	2,379,554	803,717
Segment tax expense (benefit)	605,641	252,224
Segment Assets	85,779,218		$ 83,062,455
Operating Segments [Member]
Net Revenues	13,638,000	9,226,000
Interest income, net	193,000	169,000
Depreciation	746,000	690,000
Segment income (loss) before income taxes	2,485,000	(25,000)
Segment tax expense (benefit)		252,000
Segment Assets	112,362,000		106,647,000
Intersegment Eliminations [Member]
Net Revenues	308,000	96,000
Segment income (loss) before income taxes	(105,000)	829,000
Segment Assets	(26,583,000)		(23,585,000)
Horse Racing [Member]
Segment tax expense (benefit)	(31,000)
Horse Racing [Member] | Operating Segments [Member]
Net Revenues	2,112,000	1,972,000
Interest income, net	1,000	2,000
Depreciation	621,000	564,000
Segment income (loss) before income taxes	(14,000)	(430,000)
Segment tax expense (benefit)		125,000
Segment Assets	55,401,000		50,647,000
Horse Racing [Member] | Intersegment Eliminations [Member]
Net Revenues	64,000	1,000
Card Casino [Member]
Segment tax expense (benefit)	624,000
Card Casino [Member] | Operating Segments [Member]
Net Revenues	10,360,000	6,864,000
Interest income, net	0	0
Depreciation	75,000	75,000
Segment income (loss) before income taxes	2,447,000	1,135,000
Segment tax expense (benefit)		356,000
Segment Assets	2,651,000		2,726,000
Card Casino [Member] | Intersegment Eliminations [Member]
Net Revenues	0	0
Food and Beverage Segment [Member]
Segment tax expense (benefit)	43,000
Food and Beverage Segment [Member] | Operating Segments [Member]
Net Revenues	1,166,000	390,000
Interest income, net	0	0
Depreciation	50,000	51,000
Segment income (loss) before income taxes	171,000	(203,000)
Segment tax expense (benefit)		(64,000)
Segment Assets	27,359,000		27,091,000
Food and Beverage Segment [Member] | Intersegment Eliminations [Member]
Net Revenues	244,000	95,000
Development [Member]
Segment tax expense (benefit)	(30,000)
Development [Member] | Operating Segments [Member]
Net Revenues	0	0
Interest income, net	192,000	167,000
Depreciation	0	0
Segment income (loss) before income taxes	(119,000)	(527,000)
Segment tax expense (benefit)		(165,000)
Segment Assets	26,951,000		$ 26,183,000
Development [Member] | Intersegment Eliminations [Member]
Net Revenues	$ 0	$ 0