TAXABLE INCOME AND TAX BASIS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
TAXABLE INCOME AND TAX BASIS
Taxable net income	$ 9,989,000	$ 10,968,000	$ 4,056,000
Excess amount of statement income over taxable income	1,535,000
Excess amount of cumulative statement basis over cumulative taxable basis	8,000,000
Excess amount of statement income from joint venture investments over taxable income	6,000,000
Reconciliation of GAAP net income to taxable income
Book/Tax differences from depreciation and amortization	(2,300,000)	4,160,000	5,673,000
Book/Tax differences from Investment Properties	(351,000)	(1,258,000)	87,000
Increase (Decrease) in prepaid rent and allowances	732,000	554,000	(46,000)
Other items	$ 2,752,000	$ 1,273,000	$ 1,216,000