Income Taxes - Reconciliation tax expense (Details)		1 Months Ended	12 Months Ended
Jan. 01, 2018	Dec. 31, 2017	Sep. 30, 2021	Sep. 30, 2020
Income Taxes
U.S. federal statutory rate	(21.00%)	(34.00%)	(21.00%)	(21.00%)
State taxes, net of federal benefit			(7.00%)	(6.60%)
Sale of New Jersey net operating losses				(6.70%)
Net operating loss			1.90%	6.20%
Deferred true-up				26.80%
Permanent differences			0.40%	(0.30%)
Research and development credit			(3.70%)	3.30%
Change in valuation allowance			30.70%	(10.00%)
Other			(1.30%)	(0.20%)
Effective income tax rate			0.00%	(8.50%)

Represents percentage of Effective Income Tax Rate Reconciliation Deferred True up.

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Represents percentage of Effective Income Tax Rate Reconciliation net operating losses percent.

+ References

No definition available.

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Represents percentage of the state of net operating losses.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
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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 state and local income tax expense (benefit), net of federal tax expense (benefit).

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