REVENUE FROM CONTRACTS WITH CUSTOMERS (Schedule of Noninterest Income by Operating Segment) (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Service charges on deposits
Overdraft fees		$ 87,000	$ 72,000	$ 180,000	$ 219,000
Interchange income		370,000	270,000	687,000	550,000
Other		439,000	353,000	875,000	742,000
Wealth management fees	[1]	13,034,000	9,996,000	25,165,000	19,951,000
Gains/(losses) on sales of OREO		51,000	0	51,000	0
Other	[2]	3,697,000	1,935,000	8,540,000	5,681,000
Total other income		17,678,000	12,626,000	35,498,000	27,143,000
Banking [Member]
Service charges on deposits
Overdraft fees		87,000	72,000	180,000	219,000
Interchange income		370,000	270,000	687,000	550,000
Other		439,000	353,000	875,000	742,000
Wealth management fees	[1]	0	0	0	0
Gains/(losses) on sales of OREO		51,000	0	51,000	0
Other	[2]	3,247,000	1,661,000	7,541,000	5,074,000
Total other income		4,194,000	2,356,000	9,334,000	6,585,000
Wealth Management Division [Member]
Service charges on deposits
Overdraft fees		0	0	0	0
Interchange income		0	0	0	0
Other		0	0	0	0
Wealth management fees	[1]	13,034,000	9,996,000	25,165,000	19,951,000
Gains/(losses) on sales of OREO		0	0	0	0
Other	[2]	450,000	274,000	999,000	607,000
Total other income		$ 13,484,000	$ 10,270,000	$ 26,164,000	$ 20,558,000

[1] Includes investment brokerage fees.

[2] All of the other category is outside the scope of ASC 606.