Annual report pursuant to Section 13 and 15(d)

Schedule of Fair Value Hierarchy Financial Assets (Details)

Schedule of Fair Value Hierarchy Financial Assets (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	$ 28,495
Fair Value, Inputs, Level 1 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	5,484
Fair Value, Inputs, Level 2 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	23,011
Fair Value, Inputs, Level 3 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets
Money Market Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	5,484
Money Market Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	5,484
Money Market Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets
Money Market Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets
Corporate Notes and Commercial Paper [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	23,011
Corporate Notes and Commercial Paper [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets
Corporate Notes and Commercial Paper [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets	23,011
Corporate Notes and Commercial Paper [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total financial assets