Going Concern (Details) - USD ($) $ in Thousands			3 Months Ended		11 Months Ended	12 Months Ended
	Apr. 17, 2019	Oct. 09, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Jun. 30, 2019	Sep. 05, 2019
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Working capital			$ 400		$ 400
Net loss			2,068	$ 2,238		$ 7,500
Net cash used in operating activities			(1,830)	(2,247)		$ (8,500)
Proceeds from issuance of private placement of equity securities	$ 2,000	$ 3,000
Net proceeds from sale of common stock			$ 321	$ 0	$ 1,400
Secured Promissory Note | Private Placement
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Secured note principal amount							$ 1,500