Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income attributable to ordinary shares			$ 529,713	$ 2,761,356
Changes in operating assets and liabilities:
Prepaid expenses			(25,700)	24,233
Accrued professional fees, travel and other expenses			4,030,928	290,025
Interest on Investments held in Trust Account	$ (2,571,416)	$ (1,801,259)	(5,105,671)	(3,216,244)
Withdrawal of interest from Trust Account to pay operating expenses			750,000
Net cash used in operating activities			179,270	(140,630)
Cash flows from financing activities:
Payment of accrued offering costs				(85,281)
Net cash used in financing activities				(85,281)
Net change in cash			179,270	(225,911)
Cash at beginning of period			512,827	372,073
Cash at end of period	$ 692,097	$ 146,162	$ 692,097	146,162
Supplemental disclosure of non-cash financing activities:
Accrued offering costs				$ 35,520