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Income Taxes (Details)	3 Months Ended		6 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax benefit at federal statutory rate					(21.00%)	(34.00%)
State income tax, net of federal benefit					(7.70%)	(6.50%)
Warrant expense					9.40%	10.60%
Disqualified interest and other					1.00%	0.90%
Research credits					(1.50%)	(1.20%)
U.S. tax reform						8.30%
Valuation allowance					19.80%	21.90%
Effective tax rate	0.00%	0.00%	0.00%	0.00%

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) attributable to Research credits.

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Percentage of federal tax reform.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) attributable to warrant expense.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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