Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments - Fair Value of Assets (Details)

v3.22.1
Fair Value of Financial Instruments - Fair Value of Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Assets:    
Short-term investments $ 15,035 $ 43,125
Investments in equity securities 335 1,838
Total assets 15,370 44,963
Level 1    
Assets:    
Short-term investments 15,035 43,125
Investments in equity securities 0 0
Total assets 15,035 43,125
Level 2    
Assets:    
Short-term investments 0 0
Investments in equity securities 0 0
Total assets 0 0
Level 3    
Assets:    
Short-term investments 0 0
Investments in equity securities 335 1,838
Total assets $ 335 $ 1,838