SUBSEQUENT EVENTS (Details Narrative) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended												12 Months Ended
	Feb. 06, 2022	Jan. 12, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Cash Paid			$ 0.19	$ 0.19	$ 0.19	$ 0.19	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.76	$ 0.72	$ 0.72
Monmouth Real Estate Investment Corporation [Member]
Subsequent Event [Line Items]
Number of common stock owned, shares			2,700,000												2,700,000
Restricted Stock [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period															280,000	35,000	118,000
Subsequent Event [Member] | Series A Bonds [Member]
Subsequent Event [Line Items]
Sale of stock, number of shares issued in transaction, amount	$ 102.7
Sale of Stock, Percentage of Ownership after Transaction	4.72%
Sale of Stock, Consideration Received Per Transaction	$ 98.7
Debt Instrument, Interest Rate, Effective Percentage	4.72%
Debt Instrument, Maturity Date	Feb. 28, 2027
Subsequent Event [Member] | Restricted Stock [Member] | Five Employees [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		25,000