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Marketable Securities (Details - Unrealized losses) $ in Thousands | 9 Months Ended
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Sep. 30, 2022 USD ($)
Net Investment Income [Line Items] |
Gross unrealized loss | $ (6,944)
Fair Value | 79,585
Corporate Bond Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (2,375)
Fair Value | 34,365
US Treasury Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (1,456)
Fair Value | 19,489
Collateralized Mortgage-Backed Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (829)
Fair Value | 5,528
U S Agency And Government Sponsored Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (1,493)
Fair Value | 11,625
US Treasury Notes Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (781)
Fair Value | 8,020
Asset-Backed Securities [Member] |
Net Investment Income [Line Items] |
Gross unrealized loss | (10)
Fair Value | $ 558

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