INVESTMENTS - Summary of debt securities by major security type (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 57,853	$ 97,755
Gross Unrealized Gains	62	24
Gross Unrealized Losses	(20)	(143)
Fair Value	57,895	97,636
Municipal Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	1,352
Gross Unrealized Gains	4
Gross Unrealized Losses	0
Fair Value	1,356
Corporate Debt Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	38,818	53,452
Gross Unrealized Gains	52	22
Gross Unrealized Losses	(19)	(40)
Fair Value	38,851	53,434
U.S. Government Agency Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	17,683	44,303
Gross Unrealized Gains	6	2
Gross Unrealized Losses	(1)	(103)
Fair Value	17,688	44,202
Certificates of Deposit
Debt Securities, Available-for-Sale [Line Items]
Certificates of Deposit	$ 6,496	$ 6,417

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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