Summary of Significant Accounting Policies - Financial Instruments (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended			6 Months Ended	12 Months Ended
	Dec. 16, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Offering costs paid on the issuance of common stock and warrants						$ 334	$ 969
June 2022 Private Placement
Class of Stock [Line Items]
Sale of common stock (in shares)					1,313,462
Sale of common stock (in dollars per share)		$ 1.30			$ 1.30
Securities called by warrants (in shares)						2,692,310
Exercise price of warrants (in dollars per share)						$ 1.30
Amount paid for placement agent commissions					$ 252
Amount paid related to expenses for registered direct offering and concurrent private placement					35
Amount paid for clearing fees					$ 47
Offering costs paid on the issuance of common stock and warrants						$ 334
Net proceeds from sale of common stock and warrants		$ 3,200
Estimated proceeds from issuance of warrants						$ 3,500
June 2022 Private Placement | Pre-Funded Warrants
Class of Stock [Line Items]
Securities called by warrants (in shares)		1,378,848			1,378,848
Exercise price of warrants (in dollars per share)		$ 0.0001			$ 0.0001
June 2022 Private Placement | Warrant
Class of Stock [Line Items]
Securities called by warrants (in shares)		2,692,310			2,692,310
Exercise price of warrants (in dollars per share)		$ 1.30			$ 1.30
December 2021 Private Placement
Class of Stock [Line Items]
Sale of common stock (in shares)			1,193,185
Sale of common stock (in dollars per share)			$ 3.52				$ 3.52
Securities called by warrants (in shares)						1,278,413
Exercise price of warrants (in dollars per share)						$ 3.52
Amount paid for placement agent commissions			$ 360
Amount paid related to expenses for registered direct offering and concurrent private placement			42
Amount paid for clearing fees			97
Offering costs paid on the issuance of common stock and warrants			499
Net proceeds from sale of common stock and warrants			$ 4,000
Estimated proceeds from issuance of warrants						$ 4,500
December 2021 Private Placement | Pre-Funded Warrants
Class of Stock [Line Items]
Securities called by warrants (in shares)			85,228				85,228
Exercise price of warrants (in dollars per share)			$ 0.0001				$ 0.0001
Number of warrants issued (in shares)	85,228					1,378,848	85,000
December 2021 Private Placement | Warrant
Class of Stock [Line Items]
Securities called by warrants (in shares)			1,278,413				1,278,413
Exercise price of warrants (in dollars per share)			$ 3.52				$ 3.52
Investor Warrants
Class of Stock [Line Items]
Sale of common stock (in shares)				990,100
Sale of common stock (in dollars per share)				$ 5.05
Amount paid for placement agent commissions				$ 400
Amount paid related to expenses for registered direct offering and concurrent private placement				51
Amount paid for clearing fees				19
Offering costs paid on the issuance of common stock and warrants						$ 469
Net proceeds from sale of common stock and warrants				$ 4,500
Number of warrants issued (in shares)						187,734	187,734
January 2020 Equity Offering
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)						$ 3.67
Number of warrants issued (in shares)						229,414	229,414
Estimated proceeds from issuance of warrants						$ 841
January 2020 Institutional Investor
Class of Stock [Line Items]
Sale of common stock (in dollars per share)						$ 3.3700
January 2020 Equity Offering, Private Placement
Class of Stock [Line Items]
Exercise price of warrants (in dollars per share)						$ 4.9940
Number of warrants issued (in shares)						41,680	41,680