BUSINESS COMBINATIONS - Consideration Paid (Details) - Savoy Bank - USD ($) $ in Thousands			6 Months Ended
	May 26, 2021	Apr. 30, 2021	Mar. 31, 2022
Consideration Paid [Abstract]
Common stock issued (1,357,567 shares issued)	$ 32,521
Cash payments to common shareholders	32,991
Total consideration paid	$ 65,512
Business Combination [Abstract]
Goodwill deductible for income tax purposes			$ 0
Maximum
Business Combination [Abstract]
Fair value refinement period			1 year
Common Stock
Consideration Paid [Abstract]
Total consideration paid		$ 65,500
Business Combination [Abstract]
Common stock issued as part of consideration (in shares)	1,357,567