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Convertible Notes - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 26, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Debt Instrument [Line Items]
Total principal balance of Convertible Notes outstanding		$ 31,280		$ 31,280		$ 30,521
Debt issuance costs				1,250
Interest expense		1,911	$ 1,633	3,868	$ 3,329
Convertible Notes
Debt Instrument [Line Items]
Issuance of notes payable	$ 30,000
Debt instrument maturity date	Feb. 26, 2030
Total principal balance of Convertible Notes outstanding		31,300		31,300
Issuance of notes to related parties.	$ 13,600
Debt instrument interest rate	5.00%
Notes payable, interest rate description	The Convertible Notes accrue interest at 5.0% per annum, payable semiannually in arrears on June 30 and December 31, commencing June 30, 2020, in cash or in kind at the option of the Company
Number of common stock shares issuable upon conversion of each $1000 principal debt amount	288.0018
Yield Percentage on identical non-convertible instrument	12.50%
Debt instrument unamortized discount	$ 12,600
Debt issuance costs	$ 1,200
Amortization period of convertible notes debt discount and debt issuance costs	10 years
Interest expense		$ 600		$ 1,100
Matthew A. Drapkin | Convertible Notes
Debt Instrument [Line Items]
Issuance of notes to related parties.	$ 6,300
Jason W. Reese | Convertible Notes
Debt Instrument [Line Items]
Issuance of notes to related parties.	6,700
Eric J Scheyer | Convertible Notes
Debt Instrument [Line Items]
Issuance of notes to related parties.	$ 700

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