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Schedule II - Valuation and Qualifying Accounts - Rollforward for Allowance for Doubtful Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Allowance for doubtful accounts	$ 498,044	$ 612,434
Bad debt expense	(28,499)	320,270
Receivables written off during the periods	(24,415)	(484,265)
Effect of currency translation	(36,054)	49,605
Allowance for doubtful accounts	409,076	498,044
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Allowance for doubtful accounts	498,044	612,434
Bad debt expense	(28,499)	320,270
Receivables written off during the periods	(24,415)	(484,265)
Effect of currency translation	(36,054)	49,605
Allowance for doubtful accounts	$ 409,076	$ 498,044

X

- Definition

Amount of allowance for credit loss on accounts receivable.

+ References

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X

- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

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X

- Definition

Amount of gain (loss) from converting allowance reserve for credit loss to currency of reporting entity from amount denominated or measured in a different currency, which decreases (increases) the allowance for loan and lease losses.

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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