OTHER ACCRUED LIABILITIES (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
OTHER ACCRUED LIABILITIES
Prepayments from customers	$ 1,566,167	$ 1,686,868
Accrued property taxes	112,847
Accrued professional fees	368,995	331,204
Current portion - preferred stock repurchase	1,058,935	1,092,282
Other accrued expenses	159,965	288,550
Total	$ 3,266,909	$ 3,398,904

It represents information about current portion of preferred stock repurchase.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer, classified as current.

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-Section 55
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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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