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BORROWINGS (Schedule of Principal Maturities of Bank Borrowings) (Details)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]  
2019 $ 4,070,640
2020 36,345,000
2021 40,997,160
2022 29,076,000
2023 26,894,210
Total $ 137,383,010