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REAL ESTATE INVESTMENTS AND MINIMUM FUTURE RENTALS - Acquisitions (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 25, 2017 | Nov. 30, 2018 | Sep. 30, 2018 | Jul. 31, 2018 | Aug. 31, 2017 | Jul. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | $ 79,503 | $ 43,150
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 787 | 387
Campania International/U.S. Tape industrial facility, Pennsburg, Pennsylvania |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 12,675 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 226 |
New mortgage debt |  |  |  | $ 8,238 |  |  |  |
Plymouth Industries industrial facility, Plymouth, Minnesota |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 5,500 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 50 |
New mortgage debt |  |  | $ 3,325 |  |  |  |  |
Applied Control Industrial Facility, Eaglewood, Colorado |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 12,800 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 62 |
Xerimis industrial facility, Moorestown, New Jersey |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 7,350 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 147 |
New mortgage debt |  | $ 4,000 |  |  |  |  |  |
Multi-tenant industrial facility, Moorestown, New Jersey |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 13,498 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 110 |
Men's Warehouse industrial facility, Bakersfield, California |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 10,850 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 63 |
Dufresne Spencer Group industrial facility, Green Park, Missouri |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 10,000 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | 63 |
Transcendia industrial facility, Greenville, South Carolina |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  | 6,830 |
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  | $ 66 |
Forbo industrial facility, Huntersville, North Carolina |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  |  | 8,700
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  |  | 72
New mortgage debt | $ 5,190 |  |  |  |  |  |  |
Saddle Creek Logistics industrial facility, Pittston, Pennsylvania |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  |  | 11,750
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  |  | 199
New mortgage debt |  |  |  |  | $ 7,200 |  |  |
Corporate Woods industrial facility, Ankeny, Iowa |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  |  | 14,700
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  |  | 29
New mortgage debt |  |  |  |  |  | $ 8,820 |  |
Dufresne Spencer Group industrial facility, Memphis, Tennessee |  |  |  |  |  |  |  |
Real Estate Acquisitions |  |  |  |  |  |  |  |
Contract Purchase Price |  |  |  |  |  |  |  | 8,000
Third Party Real Estate Acquisition Costs, Capitalized |  |  |  |  |  |  |  | $ 87

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