Shareholder’s Equity (Details) - $ / shares	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Preferred shares, authorized	100,000,000	100,000,000
Ordinary shares, authorized	300,000,000	300,000,000
Ordinary shares, issued	4,104,181	4,086,448
Shares subject to possible redemption	10,585,569	10,603,302
Ordinary share price	$ 11.50
Warrants [Member]
Warrants price		$ 0.01
Description of warrant	The Company may call the warrants for redemption (excluding the private warrants and any warrants issued to its initial shareholders, officers or directors in payment of working capital loans made to the Company, but including outstanding warrants issued upon exercise of the unit purchase option issued to Chardan Capital Markets LLC), in whole and not in part, at a price of $0.01 per warrant, ● at any time after the warrants become exercisable, ● upon not less than 30 days' prior written notice of redemption to each warrant holder, ● if, and only if, the reported last sale price of the ordinary shares equals or exceeds $16.00 per share (as adjusted for stock splits, stock dividends, reorganizations and recapitalizations), for any 20 trading days within a 30 trading day period ending on the third business day prior to the notice of redemption to warrant holders; and ● if, and only if, there is a current registration statement in effect with respect to the ordinary shares underlying such warrants.