ACQUISITIONS, EXPANSIONS AND DISPOSITIONS (Details Narrative)													1 Months Ended	12 Months Ended
	Oct. 27, 2021 USD ($) ft² a	Aug. 25, 2021 USD ($)	Jul. 29, 2021 USD ($)	Jun. 04, 2021 USD ($)	Jun. 01, 2021	Apr. 15, 2021	Dec. 24, 2020 USD ($) ft² a	Dec. 17, 2020 USD ($)	Sep. 15, 2020 USD ($) ft² a	May 21, 2020 USD ($) ft² a	Mar. 30, 2020 USD ($) ft² a	Oct. 10, 2019 USD ($) ft² a	Apr. 15, 2021	Sep. 30, 2021 USD ($) ft² $ / shares	Sep. 30, 2020 USD ($)
Business Acquisition [Line Items]
Transaction costs														$ 720,000	$ 179,000
Sale of real estate description						we sold our 60,400 square foot building located in Carlstadt, NJ which is in the New York, NY MSA, for gross proceeds of $13.0 million. Prior to the sale, we owned a 51% interest in this property. Our 51% portion of the sale proceeds resulted in a U.S. GAAP net realized gain of approximately $3.3 million, representing a 159% gain over the depreciated U.S. GAAP basis and a net realized gain over our historic undepreciated cost basis of approximately $2.6 million, representing a 96% net gain over our historic undepreciated cost basis.							we sold our 60,400 square foot building located in Carlstadt, NJ which is in the New York, NY MSA, for gross proceeds of $13.0 million. Prior to the sale, we owned a 51% interest in this property. Our 51% portion of the sale proceeds resulted in a U.S. GAAP net realized gain applicable to common shareholders of approximately $3.3 million, representing a 159% gain over the depreciated U.S. GAAP basis and a net realized gain over our historic undepreciated cost basis of approximately $2.6 million, representing a 96% net gain over our historic undepreciated cost basis.
the effects of NCI, description						Prior to the sale, the 49% Non-controlling interest (“NCI”) did not have a material impact on our financial position or results of operations and accordingly was not separately presented in the financial statements. However, upon the sale of the property on April 15, 2021, we presented the effects of the NCI in the Consolidated Statements of Income (Loss) for all periods presented.
Series C Cumulative Redeemable Preferred Stock [Member]
Business Acquisition [Line Items]
Cumulative redeemable preferred, stock dividend rate														6.125%
Preferred stock, par value | $ / shares														$ 0.01
Series C Cumulative Redeemable Preferred Stock [Member]
Business Acquisition [Line Items]
Cumulative redeemable preferred, stock dividend rate														6.125%
United Parcel Service Inc Expansion [Member] | Straight Line Rents [Member]
Business Acquisition [Line Items]
Current tenant lease agreement expansion, description				In addition, effective June 4, 2021, we completed a parking lot expansion for UPS at our property located in Halfmoon (Albany), NY for a cost of approximately $835,000, resulting in an initial increase in annual rent effective on the date of completion of approximately $52,000 from approximately $510,000, or $6.80 per square foot, to approximately $562,000, or $7.50 per square foot. Furthermore, annual rent will continue to increase each year by 2.0% resulting in an annualized rent from June 4, 2021 through the remaining term of the lease of approximately $622,000, or $8.29 per square foot.
New Lease United Parcel Service Inc [Member] | Straight-Line Rent [Member]
Business Acquisition [Line Items]
Rent, annual increase percentage				2.00%
Expansion cost of properties				$ 835,000
Minimum [Member]
Business Acquisition [Line Items]
Mortgage loan on real estate, interest rate														2.95%
Maximum [Member]
Business Acquisition [Line Items]
Mortgage loan on real estate, interest rate														6.75%
FedEx Ground Package System, Inc. [Member]
Business Acquisition [Line Items]
Project cost														$ 3,400,000
Increase in annual rent														340,000
Annualized Rent														$ 2,600,000
Rent, annual increase percentage					2.10%									2.10%
Expansion cost of properties				$ 42,600,000
FedEx Ground Package System, Inc. [Member] | Minimum [Member]
Business Acquisition [Line Items]
Annualized Rent														$ 2,100,000
Price per square foot | ft²														6.83
FedEx Ground Package System, Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Annualized Rent														$ 2,500,000
Price per square foot | ft²														7.91
FedEx Ground Package System, Inc. [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages		$ 22,300,000	$ 35,500,000					$ 47,000,000.0		$ 30,300,000
Mortgage loan on real estate, interest rate		2.50%	2.50%					2.95%		3.10%
Annual rental revenue								$ 4,600,000
Mortgage loan amortization period		15 years	15 years							15 years
FedEx Ground Package System, Inc. [Member] | Industrial Buildings [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Face amount of mortgages	$ 19,300,000
Annual rental revenue	$ 1,700,000
Purchase of industrial building | ft²	291,000
Area of property | a	46.0
Percentage of building area leased	100.00%
Lease term	15 years
Lease term expiration period	July 2036
Purchase price of industrial building	$ 30,200,000
Mortgage loan amortization period	15 years
Mortgage loan commitment on real estate, interest rate	2.40%
Home Depot U.S.A., Inc. [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages							$ 57,000,000.0
Mortgage loan on real estate, interest rate							3.25%
Annual rental revenue							$ 5,500,000
Purchase of industrial building | ft²							658,000
Area of property | a							130.2
Percentage of building area leased							100.00%
Lease term							20 years
Lease term expiration period							November 2040
Purchase price of industrial building							$ 95,900,000
Mortgage loan amortization period							17 years
Amazon.com Services, Inc. [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages												$ 52,500,000
Mortgage loan on real estate, interest rate												4.27%
Annual rental revenue												$ 5,000,000.0
Purchase of industrial building | ft²												616,000
Area of property | a												78.6
Percentage of building area leased												100.00%
Lease term												15 years
Lease term expiration period												August 2034
Purchase price of industrial building												$ 81,500,000
Mortgage loan amortization period												18 years
Magna Seating of America Inc [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages											$ 9,400,000
Mortgage loan on real estate, interest rate											3.47%
Annual rental revenue											$ 1,200,000
Purchase of industrial building | ft²											153,000
Area of property | a											24.2
Percentage of building area leased											100.00%
Lease term											10 years
Lease term expiration period											January 2030
Purchase price of industrial building											$ 17,900,000
Mortgage loan amortization period											10 years
FedEx Corporation [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages										$ 8,400,000
Mortgage loan on real estate, interest rate										3.18%
Annual rental revenue										$ 772,000
Purchase of industrial building | ft²										70,000
Area of property | a										7.5
Percentage of building area leased										100.00%
Lease term										15 years
Lease term expiration period										March 2035
Purchase price of industrial building										$ 12,900,000
Mortgage loan amortization period										15 years
Subsidiary Of Amazon [Member] | Industrial Buildings [Member]
Business Acquisition [Line Items]
Face amount of mortgages									$ 9,800,000
Mortgage loan on real estate, interest rate									3.00%
Annual rental revenue									$ 934,000
Purchase of industrial building | ft²									121,000
Area of property | a									21.5
Percentage of building area leased									100.00%
Lease term									10 years
Lease term expiration period									August 2030
Purchase price of industrial building									$ 15,200,000
Mortgage loan amortization period									15 years