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INTEREST RATE SWAP DERIVATIVES -Notional Amounts of Derivative Instruments (Details) - Interest Rate Swap
12 Months Ended
Dec. 31, 2019
USD ($)
instrument
Dec. 31, 2018
USD ($)
instrument
Derivatives, Fair Value [Line Items]    
Number of Instruments | instrument 12 4
Notional Amount $ 48,215,139 $ 27,346,400
Weighted Average Fixed Pay Rate 3.87% 4.73%
Weighted Average Remaining Term 2 years 10 months 15 days 5 years 1 month 6 days
Minimum    
Derivatives, Fair Value [Line Items]    
Minimum notional amount $ 45,514,229 $ 24,936,799
(LIBOR) | Minimum    
Derivatives, Fair Value [Line Items]    
Reference Rate 1.21% 4.05%
(LIBOR) | Maximum    
Derivatives, Fair Value [Line Items]    
Reference Rate 5.16% 5.16%