RENTAL PROPERTIES (Reconciliation) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Rental Properties
Balance, Beginning	$ 400,588,242	$ 398,629,793	$ 398,554,000
Additions:
Buildings, improvements and other assets	5,981,125	3,317,445	3,240,408
Balance before deductions	406,569,367	401,947,238	401,794,408
Deduct:
Write-offs of retired or disposed assets	5,865,457	1,358,996	3,164,615
Balance, Ending	400,703,911	400,588,242	398,629,793
Accumulated Depreciation
Balance, Beginning	149,233,040	134,019,906	120,190,012
Add:
Depreciation for the year	16,259,896	16,572,131	16,994,509
Total additions	165,492,936	150,592,037	137,184,521
Deduct:
Accumulated depreciation of retired or disposed assets	5,865,457	1,358,997	3,164,615
Balance, Ending	$ 159,627,479	$ 149,233,040	$ 134,019,906