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LEASES - Narrative (Details)
3 Months Ended
Mar. 31, 2020
USD ($)
a
Mar. 31, 2019
USD ($)
Leases [Abstract]    
Operating lease cost $ 200,000  
Variable lease cost $ 0  
Weighted average remaining lease term 5 years 5 months 16 days  
Weighted average discount rate 5.32%  
Cash paid for amounts included in measurement of lease liabilities $ 200,000 $ 300,000
Land subject to ground leases (acres) | a 192  
Below market lease, amortization 2019 $ 100,000  
Below market lease, amortization 2020 100,000  
Below market lease, amortization 2021 100,000  
Below market lease, amortization 2022 100,000  
Below market Lease, amortization 2023 100,000  
Lease income $ 3,341,000 $ 3,341,000