Fair Value Measurements (Reconciliation of the Beginning and Ending Liability Balance) (Details) - USD ($)	9 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Fair Value Measurements [Abstract]
Beginning balance	$ 7,851,000	$ 4,182,000
Change in fair value of derivative liabilities	557,000	2,029,000
Ending balance	$ 8,408,000	$ 6,211,000

Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration