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Going Concern (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 09, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Working capital		$ 2,100		$ 2,100
Net loss		$ 2,160	$ 3,137	4,398	$ 6,143	$ 13,300
Net cash used in operating activities				$ (4,230)	$ (5,849)	$ (10,800)
Proceeds from issuance of private placement of equity securities	$ 3,000

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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