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Going Concern (Details) - USD ($) $ in Thousands				12 Months Ended
	Jun. 30, 2019	Apr. 17, 2019	Oct. 09, 2018	Jun. 30, 2019	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Working capital	$ 1,900			$ 1,900
Net loss				7,534	$ 13,251
Net cash used in operating activities				$ (8,475)	$ (10,784)
Proceeds from issuance of private placement of equity securities		$ 2,000	$ 3,000
Net proceeds from sale of common stock	$ 1,000

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