Condensed Consolidated Statements of Stockholders' Equity (Parenthetical)	3 Months Ended
Sep. 30, 2019 $ / shares
Condensed Consolidated Statements of Stockholders' Equity
Issuance of common stock for cash: Related parties, per share	$ 14.50
Issuance of common stock for cash: Other investors, per share	$ 14.50

Equity impact of the per share value of new stock issued to other investors during the period.

No definition available.

Name:	rzlt_StockIssuedDuringPeriodPerShareValueNewIssuesOtherInvestors
Namespace Prefix:	rzlt_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration