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For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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The average effective interest rate during the reporting period.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Bank Loan (Details Textual) - USD ($)				1 Months Ended	3 Months Ended	12 Months Ended
Bank Loan (Details Textual) - USD ($)	Dec. 07, 2018	Dec. 03, 2018	Oct. 08, 2018	Mar. 02, 2018	Apr. 30, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Bank Loan (Textual)
Bank loan						$ 1,527,162	$ 230,507
Restricted cash deposit						467,806
Interest expense						19,385	13,111	$ 3,665
Scenarios, Forecast [Member]
Bank Loan (Textual)
Repaid in aggregate amount					$ 58,178
China Construction Bank [Member]
Bank Loan (Textual)
Bank loan							$ 230,507
Annual interest rate							6.30%
Maturity date							Jan. 31, 2018
China Construction Bank [Member] \| Powerbridge Zhuhai [Member]
Bank Loan (Textual)
Bank loan				$ 218,166
Annual interest rate				7.40%
Maturity date				Mar. 04, 2019
Bank of Communication [Member] \| Powerbridge Zhuhai [Member]
Bank Loan (Textual)
Bank loan			$ 290,888
Annual interest rate			5.40%
Loan term			1 year
Bank of China [Member] \| Powerbridge Zhuhai [Member]
Bank Loan (Textual)
Bank loan	$ 727,220
Annual interest rate	5.20%
Loan term	1 year
Restricted cash deposit						$ 109,083
Dongguan Bank [Member] \| Powerbridge Zhuhai [Member]
Bank Loan (Textual)
Bank loan		$ 290,888
Annual interest rate		7.00%
Loan term		1 year
Account receivable		$ 847,696