INCOME TAXES - DOMESTIC AND FOREIGN COMPONENTS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes to unrecognized tax benefits (excluding related penalties and interest)
Unrecognized tax benefits, beginning of year	$ 239,000	$ 8,335,000	$ 555,000
Gross increases - tax positions in prior period	9,000		8,088,000
Gross decreases - tax positions in prior period		(8,091,000)	(9,000)
Gross increases - tax positions in current period	58,000	50,000	52,000
Settlements			(284,000)
Lapse of statute of limitations	(50,000)	(55,000)	(67,000)
Unrecognized tax benefits, end of year	256,000	$ 239,000	$ 8,335,000
Unrecognized tax benefits, if recognized, would favorably impact future earnings	237,000
Penalties accrued on unrecognized tax benefits	0
NRC
Changes to unrecognized tax benefits (excluding related penalties and interest)
Change in net operating losses deferred tax asset	$ 8,100,000