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Warrants (Details Textual) - Initial public offering in December 2016 [Member]	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Warrants (Textual)
Warrants to underwriters to purchase shares of common stock | shares	115,000
Warrants to underwriters to purchase shares of common stock with exercise price | $ / shares	$ 8.75
Warrants expiry date	Dec. 31, 2021

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- References

No definition available.

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- Definition

Warrants to underwriters to purchase shares of common stock.

+ References

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- Definition

Warrants to underwriters to purchase shares of common stock with exercise price.

+ References

No definition available.

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- Definition

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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