Note 5 - Operating Segments - Disaggregation of Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Net Revenues	$ 17,774,274	$ 15,871,818	$ 31,412,246	$ 25,097,360
Interest income, net	205,300	175,090	398,140	344,400
Depreciation			1,487,523	1,383,753
Segment income (loss) before income taxes	2,373,729	2,626,681	4,753,283	3,430,398
Segment tax expense (benefit)	618,660	$ 757,597	1,224,301	1,009,821
Segment Assets	96,444,912		96,444,912		$ 83,062,455
Operating Segments [Member]
Net Revenues			31,412,000	25,097,000
Interest income, net			398,000	344,000
Depreciation			1,488,000	1,384,000
Segment income (loss) before income taxes			5,310,000	2,536,000
Segment tax expense (benefit)				1,010,000
Segment Assets	126,479,000		126,479,000		106,647,000
Intersegment Eliminations [Member]
Net Revenues			580,000	287,000
Segment income (loss) before income taxes			(557,000)	894,000
Segment Assets	(30,034,000)		(30,034,000)		(23,585,000)
Horse Racing [Member]
Segment tax expense (benefit)			(176,000)
Horse Racing [Member] | Operating Segments [Member]
Net Revenues			7,565,000	6,622,000
Interest income, net			9,000	1,000
Depreciation			1,313,000	1,207,000
Segment income (loss) before income taxes			(124,000)	(686,000)
Segment tax expense (benefit)				61,000
Segment Assets	69,448,000		69,448,000		50,647,000
Horse Racing [Member] | Intersegment Eliminations [Member]
Net Revenues			86,000	1,000
Card Casino [Member]
Segment tax expense (benefit)			1,320,000
Card Casino [Member] | Operating Segments [Member]
Net Revenues			20,355,000	16,755,000
Interest income, net			0	0
Depreciation			75,000	75,000
Segment income (loss) before income taxes			5,125,000	3,948,000
Segment tax expense (benefit)				1,162,000
Segment Assets	2,576,000		2,576,000		2,726,000
Card Casino [Member] | Intersegment Eliminations [Member]
Net Revenues			0	0
Food and Beverage Segment [Member]
Segment tax expense (benefit)			209,000
Food and Beverage Segment [Member] | Operating Segments [Member]
Net Revenues			3,492,000	1,720,000
Interest income, net			0	0
Depreciation			100,000	102,000
Segment income (loss) before income taxes			811,000	49,000
Segment tax expense (benefit)				15,000
Segment Assets	28,435,000		28,435,000		27,091,000
Food and Beverage Segment [Member] | Intersegment Eliminations [Member]
Net Revenues			494,000	286,000
Development [Member]
Segment tax expense (benefit)			(129,000)
Development [Member] | Operating Segments [Member]
Net Revenues			0	0
Interest income, net			389,000	343,000
Depreciation			0	0
Segment income (loss) before income taxes			(502,000)	(775,000)
Segment tax expense (benefit)				(228,000)
Segment Assets	$ 26,020,000		26,020,000		$ 26,183,000
Development [Member] | Intersegment Eliminations [Member]
Net Revenues			$ 0	$ 0