Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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- Definition

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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The Company and Summary of Significant Accounting Policies - Summary of Outstanding Warrants (Details) - $ / shares	Sep. 30, 2020	Apr. 21, 2020	Oct. 31, 2018
Class Of Warrant Or Right [Line Items]
Exercise Price		$ 2.40	$ 6.00
Common Stock Warrants One
Class Of Warrant Or Right [Line Items]
Number of Shares	33
Exercise Price	$ 47.00
Expiration	Jan. 30, 2023
Common Stock Warrants Two
Class Of Warrant Or Right [Line Items]
Number of Shares	1,846
Exercise Price	$ 2.40
Expiration	Oct. 30, 2023