INVESTMENT SECURITIES - General Information (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended		40 Months Ended
	Nov. 26, 2019	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2023
Marketable Securities [Line Items]
Investment in Alpine Income Property Trust, Inc.		$ 39,259	$ 42,041		$ 39,259
Alpine Income Property Trust, Inc. Common Stock and Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Number of shares owned		2,330,000			2,330,000
Investment in Alpine Income Property Trust, Inc.		$ 39,259	$ 42,041		$ 39,259
Investment ownership percentage (as a percent)		14.80%			14.80%
Common Stock [Member]
Marketable Securities [Line Items]
Share purchased	421,053	129,271	155,665	8,088	1,108,814
Purchase price of shares	$ 8,000	$ 2,100	$ 2,700	$ 100
Investment in Alpine Income Property Trust, Inc.		$ 18,662	$ 18,690		$ 18,662
Investment ownership percentage (as a percent)		7.00%			7.00%
Alpine Income Property OP, LP Limited Partnership Units
Marketable Securities [Line Items]
Share purchased					1,223,854
Investment ownership percentage (as a percent)		7.80%			7.80%