Identifies or describes the benchmark that serves as the denominator in the calculation of the percentage of concentration risk.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Name:	us-gaap_ConcentrationRiskBenchmarkDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Concentration, Credit and Other Risks - Major Suppliers (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) item	Sep. 30, 2018 item	Dec. 31, 2018 USD ($)
Digital currency [line items]
Insured deposit \| $	$ 855,915		$ 0
Major Suppliers \| Cost of revenues
Digital currency [line items]
Description of percentage of revenue for major supplier		more than 10
Number of suppliers		2
Major Suppliers \| Accounts payable
Digital currency [line items]
Description of percentage of revenue for major supplier	more than 10	more than 10
Number of suppliers	1	2
GTBs
Digital currency [line items]
Number of GTB tokens held	8,333,333