FAIR VALUE MEASUREMENT AND DISCLOSURE (Schedule of Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial assets:
Held-to-maturity securities, at amortized cost	$ 546,520	$ 1,291
Held-to-maturity securities, fair value	537,538	1,380
Mortgage servicing rights	4,349	3,310
Financial liabilities:
Time deposits	289,787	409,264
Short-term Debt, Fair Value	371,254	211,586
Subordinated debentures	32,362	33,248
Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,507,652	1,435,794
Commercial
Financial assets:
Loans receivable, net of allowance	412,810	356,463
SBA PPP
Financial assets:
Loans receivable, net of allowance	2,575	37,133
Residential real estate
Financial assets:
Loans receivable, net of allowance	1,379,295	1,297,592
Home equity
Financial assets:
Loans receivable, net of allowance	232,754	205,920
Consumer
Financial assets:
Loans receivable, net of allowance	17,363	17,551
Readily Available Market Prices (Level 1)
Financial assets:
Held-to-maturity securities, fair value	0	0
Mortgage servicing rights	0	0
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Readily Available Market Prices (Level 1) \| Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) \| Commercial
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) \| SBA PPP
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) \| Residential real estate
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) \| Home equity
Financial assets:
Loans receivable, net of allowance	0	0
Readily Available Market Prices (Level 1) \| Consumer
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2)
Financial assets:
Held-to-maturity securities, fair value	537,538	1,380
Mortgage servicing rights	0	0
Financial liabilities:
Time deposits	289,787	409,264
Short-term Debt, Fair Value	371,254	211,586
Subordinated debentures	32,362	33,248
Observable Market Data (Level 2) \| Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) \| Commercial
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) \| SBA PPP
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) \| Residential real estate
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) \| Home equity
Financial assets:
Loans receivable, net of allowance	0	0
Observable Market Data (Level 2) \| Consumer
Financial assets:
Loans receivable, net of allowance	0	0
Company Determined Fair Value (Level 3)
Financial assets:
Held-to-maturity securities, fair value	0	0
Mortgage servicing rights	4,349	3,310
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Subordinated debentures	0	0
Company Determined Fair Value (Level 3) \| Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,507,652	1,435,794
Company Determined Fair Value (Level 3) \| Commercial
Financial assets:
Loans receivable, net of allowance	412,810	356,463
Company Determined Fair Value (Level 3) \| SBA PPP
Financial assets:
Loans receivable, net of allowance	2,575	37,133
Company Determined Fair Value (Level 3) \| Residential real estate
Financial assets:
Loans receivable, net of allowance	1,379,295	1,297,592
Company Determined Fair Value (Level 3) \| Home equity
Financial assets:
Loans receivable, net of allowance	232,754	208,934
Company Determined Fair Value (Level 3) \| Consumer
Financial assets:
Loans receivable, net of allowance	17,363	17,551
Carrying Amount
Financial assets:
Held-to-maturity securities, at amortized cost	546,520	1,291
Mortgage servicing rights	2,486	2,471
Financial liabilities:
Time deposits	296,422	409,668
Short-term Debt, Fair Value	371,502	211,608
Subordinated debentures	44,331	44,331
Carrying Amount \| Commercial Real Estate
Financial assets:
Loans receivable, net of allowance	1,514,202	1,474,087
Carrying Amount \| Commercial
Financial assets:
Loans receivable, net of allowance	416,075	359,512
Carrying Amount \| SBA PPP
Financial assets:
Loans receivable, net of allowance	2,509	35,934
Carrying Amount \| Residential real estate
Financial assets:
Loans receivable, net of allowance	1,508,801	1,300,314
Carrying Amount \| Home equity
Financial assets:
Loans receivable, net of allowance	229,069	208,934
Carrying Amount \| Consumer
Financial assets:
Loans receivable, net of allowance	$ 19,328	$ 19,437

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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