Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	6 Months Ended		31 Months Ended
	Aug. 02, 2023	Aug. 08, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Aug. 01, 2023	Jul. 15, 2019
Subsequent Event [Line Items]
Warrants issued (in shares)							2,000,000
Warrant exercise price (in dollars per share)							$ 0.001
Proceeds from warrant exercises			$ 3,542
At-the-market offering
Subsequent Event [Line Items]
Payments for stock issuance costs			$ 312	$ 139	$ 2,395
Subsequent event
Subsequent Event [Line Items]
Proceeds from warrant exercises	$ 4,800
Net proceeds from initial public offering		$ 233
Payments for stock issuance costs		$ 7
Subsequent event | Existing Warrants
Subsequent Event [Line Items]
Warrants issued (in shares)						5,000,000
Warrant exercise price (in dollars per share)						$ 0.96
Stock issued during period, conversion of convertible securities (in shares)	5,000,000
Subsequent event | New Warrants
Subsequent Event [Line Items]
Warrants issued (in shares)						2,750,000
Warrant exercise price (in dollars per share)	$ 2.60
Subsequent event | At-the-market offering
Subsequent Event [Line Items]
Common Stock issued upon public equity offering (in shares)		110,709,000
Sale of stock, remaining value authorized for issuance		$ 27,773