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Capital Structure - Cashless warrants (Details) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended					3 Months Ended	12 Months Ended
	Oct. 18, 2020	Mar. 11, 2020	Oct. 31, 2019	Oct. 31, 2020	Apr. 30, 2020	Mar. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 19, 2020	Mar. 12, 2020	Mar. 10, 2020	Dec. 31, 2019
Exercise price of warrants (in dollars per share)	$ 15.0			$ 15.0
Warrants outstanding term												5 years	5 years	5 years
Exercise price of warrants (in dollars per share)								$ 15.0						$ 14.375
Warrants exercised					598,200	598,200		419,160
Warrant exercises					$ 9,000	$ 9,000				$ 0	$ 26,992
Cashless Warrants
Warrants outstanding term			5 years				5 years
Outstanding warrants		0	0				0
Exercise price of warrants (in dollars per share)			$ 12.50				$ 12.50								$ 0
Warrants exercised		291,577					500,000		500,000
Warrants issued shares			1,000,000
Cashless Warrants | Series F Convertible Preferred Stock
Warrants issued shares										1,000,000

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- Definition

Exercise price per share of warrants or rights issued during period.

+ References

No definition available.

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- Definition

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- Definition

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

+ References

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

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No definition available.

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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+ 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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