Contingent Obligations and Non-Current Liabilities - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2022	Sep. 30, 2022
Government grant obligations	$ 5,320	$ 5,287
Breath ID Products [Member]
Percent of breath ID revenue for grant repayment	3.00%
Potential Future Severance Indemnity [Member]
Liability for potential severance indemnity	$ 652	566
Maximum [Member] \| Long Term Government Grant Obligations [Member]
Percentage of interest on grants	2.02%
Minimum [Member] \| Long Term Government Grant Obligations [Member]
Percentage of interest on grants	0.58%
Former Chief Executive Officer [Member]
Post employment benefit obligations	$ 1,254	$ 1,284

The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-SubTopic 10
-Section 25
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=6410138&loc=d3e79691-111665

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-SubTopic 10
-Section 25
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=6410138&loc=d3e79708-111665

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15)
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Name:	us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant