SECURITIES (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Debt and Equity Securities, FV-NI [Line Items]
Asset backed securities pledged to secure certain deposits	$ 49,500,000	$ 49,500,000	$ 48,200,000
Recognized net gains		600,000	1,400,000
Investment securities - AFS	456,664,000	456,664,000	246,105,000
Other-than temporary impairment charges	0	0	0
Available for Sale Securities Sold
Debt and Equity Securities, FV-NI [Line Items]
Investment securities - AFS	$ 11,900,000	$ 11,900,000	$ 62,500,000