Note 5 - Operating Segments - Disaggregation of Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Net Revenues	$ 13,299,558	$ 13,637,972
Interest income, net	399,175	192,840
Depreciation	735,261	745,949
Segment income (loss) before income taxes	3,811,508	2,379,554
Segment tax expense (benefit)	1,041,000	605,641
Segment Assets	93,752,477		$ 92,276,179
Operating Segments [Member]
Net Revenues	13,300,000		13,638,000
Interest income, net	399,000		193,000
Depreciation	735,000		746,000
Segment income (loss) before income taxes	6,194,000		2,485,000
Segment tax expense (benefit)			606,000
Segment Assets	136,625,000		130,579,000
Intersegment Eliminations [Member]
Net Revenues	401,000	308,000	308,000
Segment income (loss) before income taxes	(2,382,000)	$ (105,000)
Segment Assets	(42,873,000)		(38,303,000)
Horse Racing [Member]
Segment tax expense (benefit)	(679,000)
Horse Racing [Member] | Operating Segments [Member]
Net Revenues	2,042,000		2,112,000
Interest income, net	180,000		1,000
Depreciation	612,000		621,000
Segment income (loss) before income taxes	(105,000)		(14,000)
Segment tax expense (benefit)			(31,000)
Segment Assets	74,802,000		71,338,000
Horse Racing [Member] | Intersegment Eliminations [Member]
Net Revenues	128,000		64,000
Card Casino [Member]
Segment tax expense (benefit)	1,077,000
Card Casino [Member] | Operating Segments [Member]
Net Revenues	9,714,000		10,360,000
Interest income, net	0		0
Depreciation	75,000		75,000
Segment income (loss) before income taxes	3,944,000		2,447,000
Segment tax expense (benefit)			624,000
Segment Assets	2,350,000		2,425,000
Card Casino [Member] | Intersegment Eliminations [Member]
Net Revenues	0		0
Food and Beverage Segment [Member]
Segment tax expense (benefit)	95,000
Food and Beverage Segment [Member] | Operating Segments [Member]
Net Revenues	1,544,000		1,166,000
Interest income, net	0		0
Depreciation	48,000		50,000
Segment income (loss) before income taxes	349,000		171,000
Segment tax expense (benefit)			43,000
Segment Assets	30,705,000		30,341,000
Food and Beverage Segment [Member] | Intersegment Eliminations [Member]
Net Revenues	273,000		244,000
Development [Member]
Segment tax expense (benefit)	548,000
Development [Member] | Operating Segments [Member]
Net Revenues	0		0
Interest income, net	219,000		192,000
Depreciation	0		0
Segment income (loss) before income taxes	2,006,000		(119,000)
Segment tax expense (benefit)			(30,000)
Segment Assets	28,768,000		26,475,000
Development [Member] | Intersegment Eliminations [Member]
Net Revenues	$ 0		$ 0