Annual report pursuant to Section 13 and 15(d)

Marketable Securities (Details - Marketable Securities)

v3.22.1
Marketable Securities (Details - Marketable Securities)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
Net Investment Income [Line Items]  
Adjusted Cost $ 113,778
Unrealized Loss (1,255)
Fair Value 112,523
Corporate Bond Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 47,864
Unrealized Loss (529)
Fair Value 47,335
US Treasury Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 24,410
Unrealized Loss (257)
Fair Value 24,153
Collateralized Mortgage Backed Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 7,504
Unrealized Loss (143)
Fair Value 7,361
U S Agency And Government Sponsored Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 14,675
Unrealized Loss (87)
Fair Value 14,588
US Treasury Notes Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 11,871
Unrealized Loss (189)
Fair Value 11,682
Asset-backed Securities [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 6,456
Unrealized Loss (50)
Fair Value 6,406
Commercial Paper [Member]  
Net Investment Income [Line Items]  
Adjusted Cost 998
Unrealized Loss 0
Fair Value $ 998