INVESTMENTS - Cash and Financial Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	$ 108,016		$ 108,016		$ 94,440
Cost, Total	164,721		164,721		149,162
Unrealized Gains (Losses), Equity securities	(4,188)	$ 0	(1,750)	$ 0
Unrealized Gains (Losses), Total	(1,563)		(1,563)		569
Accrued Interest, Debt securities	347		347		310
Estimated Fair Value, Total	163,505		163,505		150,041
Investment Securities	55,489		55,489		55,601
Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Equity securities	10,000		10,000		10,000
Cost, Total	31,162		31,162		30,944
Unrealized Gains (Losses), Equity securities			(1,600)		150
Unrealized Gains (Losses), Total	(1,642)		(1,642)		276
Accrued Interest, Debt securities	74		74		40
Estimated Fair Value, Equity securities	8,400		8,400		10,150
Estimated Fair Value, Total	29,594		29,594		31,260
Investment Securities	24,560		24,560		25,598
Government & agency securities | Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Debt securities	16,128		16,128		15,282
Unrealized Gains (Losses), Debt securities	(42)		(42)		126
Accrued Interest, Debt securities	74		74		40
Estimated Fair Value, Debt securities	16,160		16,160		15,448
Corporate bonds | Level 2
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Debt securities	30,577		30,577		29,440
Unrealized Gains (Losses), Debt securities	79		79		293
Accrued Interest, Debt securities	273		273		270
Estimated Fair Value, Debt securities	30,929		30,929		30,003
Cash and cash equivalents, excluding money market accounts
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	102,982		102,982		88,778
Estimated Fair Value, Cash and cash equivalents	102,982		102,982		88,778
Money market accounts | Level 1
Cash And Cash Equivalents And Marketable securities [Line Items]
Cost, Cash and cash equivalents	5,034		5,034		5,662
Estimated Fair Value, Cash and cash equivalents	$ 5,034		$ 5,034		$ 5,662