Number of new stock issued during the period.

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Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Stock Warrants (Details Textual) - Warrant [Member]			6 Months Ended
Stock Warrants (Details Textual) - Warrant [Member]	Aug. 27, 2014 USD ($) shares	Aug. 27, 2014 ¥ / shares	Jun. 30, 2019 USD ($) shares	Jun. 30, 2019 USD ($) ¥ / shares	Dec. 31, 2018 USD ($)
Stock Warrants (Textual)
Issuance of common stock and warrants	1,562,500
Warrants to purchase shares of common stock	781,250
Exercise price \| ¥ / shares		¥ 1.70		¥ 2.00
Warrants exercisable term	5 years
Fair value of common stock sold \| $	$ 780,000		$ 35,191
Aggregate percentage of common stock sold under offering			2.50%
Aggregate number of shares of common stock sold			39,062
Warrants expiration date	Sep. 02, 2019		Jun. 26, 2019
Aggregated intrinsic value of warrants outstanding and exercisable \| $