Quarterly report pursuant to Section 13 or 15(d)

Schedule of Fair Value Measurement of Assets and Liabilities (Details)

v3.22.1
Schedule of Fair Value Measurement of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities $ 24,542 $ 28,592
Fair Value, Inputs, Level 1 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 975
Fair Value, Inputs, Level 2 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 23,567 28,592
Fair Value, Inputs, Level 3 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
US Treasury Securities [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 975  
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 975  
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities  
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities  
US Government Agencies Debt Securities [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 17,859 19,277
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 17,859 19,277
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
Corporate Debt Securities [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 5,458 9,065
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 5,458 9,065
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
US States and Political Subdivisions Debt Securities [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 250 250
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities 250 250
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable Securities