Organization and Summary of Significant Accounting Policies - Additional information (Details) $ in Thousands	Jul. 31, 2022 director	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents		$ 6,420	$ 6,037	$ 9,680
Number of directors nominating by activist , \| director	6
Subsequent Events [Member]
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]
Number of directors nominating by activist , \| director	6
Subsequent Events [Member] \| David Lazar and Activist Investing LLC
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]
Ownership interest by Activist	25.00%
October 2020 Offering
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents		6,400
Fair Value, Recurring [Member] \| Money Market Funds
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents		$ 6,100	$ 5,700