BORROWINGS (Schedule of Principal Maturities of Bank Borrowings) (Details)	Dec. 31, 2019 USD ($)
BORROWINGS
2020	$ 49,548,900
2021	56,729,900
2022	56,011,800
2023	33,749,623
2024	5,026,700
Total	$ 201,066,923

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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