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INVESTMENTS - Amortized cost, gross unrealized gains and losses, allowance for credit losses, and fair value (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($)
Investment securities available for sale: |
Amortized Cost | $ 14,911
Gross Unrealized Loss | (48)
Allowance For Credit Losses | 0
Fair Value | 14,863
Commercial paper |
Investment securities available for sale: |
Amortized Cost | 9,662
Gross Unrealized Loss | (2)
Fair Value | 9,660
U.S. Treasury securities |
Investment securities available for sale: |
Amortized Cost | 5,249
Gross Unrealized Loss | (46)
Fair Value | $ 5,203

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