Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

+ References

+ Details

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Balance Type:	debit
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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Balance Type:	credit
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Definition

Number of banks with whom the company has entered into short-term loan agreements.

+ References

No definition available.

+ Details

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- Details

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- Details

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Subsequent events (Details)	1 Months Ended	3 Months Ended
Subsequent events (Details)	Jan. 31, 2020 USD ($) item	Mar. 31, 2020 USD ($) loanfacility	Mar. 31, 2020 CNY (¥)	Jan. 31, 2020 CNY (¥)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)
Subsequent events
Deposits					$ 74,509,497	¥ 518,720,216	¥ 40,000,000
PRC bank
Subsequent events
Outstanding balances of loans drawn					$ 29,159,126	¥ 203,000,000	¥ 198,000,000
Interest rate (in percent)							2.08%
Subsequent Event \| PRC bank
Subsequent events
Number of banks with whom short-term loan agreements were entered	2	2
Outstanding balances of loans drawn	$ 23,126,203	$ 25,926,485	¥ 180,495,000	¥ 161,000,000
Interest rate (in percent)	3.95%	4.15%	4.15%	3.95%
Deposits	$ 25,500,000	$ 28,650,000