Summary of Significant Accounting Policies and Select Balance Sheet Information - Schedule of Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Accrued Liabilities Current [Abstract]
Accrued professional fees	$ 434	$ 311
Accrued clinical study expense	2,163	2,839
Accrued purchases	679	533
Acquisition of in process research and development	989
Deferred rent	130	121
Other	395	262
Customer claim		1,000
Construction in progress		1,199
Total	$ 4,790	$ 6,265

Accrued clinical study expense current

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Accrued purchases current.

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Acquisition of in process research and development current.

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Customer claim current.

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Other accrued liabilities other current.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable for the acquisition of merchandise, materials, supplies and services pertaining to construction projects such as a housing development or factory expansion not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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