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INVESTMENTS AND FAIR VALUE MEASUREMENTS - AMORTIZED COST (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt and Equity Securities, FV-NI |  |
Cost or Amortized Cost | $ 103,600 | $ 95,096
Unrealized Gains | 1,335 | 290
Unrealized Losses | (8,312) | (1,669)
Fair Value | 96,623 | 93,717
Mutual Fund |  |
Debt and Equity Securities, FV-NI |  |
Cost or Amortized Cost | 40,297 | 50,000
Unrealized Gains | 0 | 0
Unrealized Losses | (2,990) | (338)
Fair Value | 37,307 | 49,662
Equity Securities |  |
Debt and Equity Securities, FV-NI |  |
Cost or Amortized Cost | 45,633 | 38,100
Unrealized Gains | 1,335 | 0
Unrealized Losses | (4,799) | (1,331)
Fair Value | 42,169 | 36,769
Corporate Bond Securities |  |
Debt and Equity Securities, FV-NI |  |
Cost or Amortized Cost | 17,670 | 6,996
Unrealized Gains | 0 | 290
Unrealized Losses | (523) | 0
Fair Value | $ 17,147 | $ 7,286

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