INVESTMENTS (Details) - Debt Securities, Available-for-sale and Held-to-Maturity - Corporate Debt Securities [Member] $ in Thousands	Jun. 30, 2021 USD ($)
Available-for-sale Securities [Member]
INVESTMENTS (Details) - Debt Securities, Available-for-sale and Held-to-Maturity [Line Items]
Amortized Cost, Available-for-sale	$ 8,741
Unrealized Gains in Other Comprehensive Income (Loss), Available-for-sale	8,308
Unrealized Losses in Investment Income (Loss), Available-for-sale	0
Fair Value, Available-for-sale	17,049
Held-to-maturity Securities [Member]
INVESTMENTS (Details) - Debt Securities, Available-for-sale and Held-to-Maturity [Line Items]
Amortized Cost, Held-to-maturity	1,000
Gross Unrecognized Holding Gains, Held-to-maturity	3
Gross Unrecognized Holding Losses, Held-to-maturity	0
Fair Value, Held-to-maturity	$ 1,003

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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