LOANS AND LEASES (Schedule of Activity in Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Allowance for loan losses
Beginning ALLL	$ 38,653	$ 37,696	$ 38,504	$ 36,440
Charge-Offs	(94)	(124)	(105)	(212)
Recoveries	82	194	142	288
Provision (Credit)	1,150	300	1,250	1,550
Ending ALLL	39,791	38,066	39,791	38,066
Agricultural Sector [Member]
Allowance for loan losses
Beginning ALLL	2	2	2
Provision (Credit)				2
Ending ALLL	2	2	2	2
Residential Portfolio Segment [Member] \| Junior Lien [Member]
Allowance for loan losses
Beginning ALLL	15	16	15	12
Recoveries		46	11	55
Provision (Credit)		(45)	(11)	(50)
Ending ALLL	15	17	15	17
Residential Portfolio Segment [Member] \| Primary Residential Mortgages [Member]
Allowance for loan losses
Beginning ALLL	3,477	4,403	3,506	4,085
Charge-Offs	(80)		(80)	(77)
Recoveries	9	139	51	139
Provision (Credit)	(349)	(160)	(420)	235
Ending ALLL	3,057	4,382	3,057	4,382
Residential Portfolio Segment [Member] \| Home Equity Lines of Credit [Member]
Allowance for loan losses
Beginning ALLL	152	192	164	221
Recoveries	3	2	5	4
Provision (Credit)		(4)	(14)	(35)
Ending ALLL	155	190	155	190
Residential Portfolio Segment [Member] \| Multifamily Property [Member]
Allowance for loan losses
Beginning ALLL	5,768	9,140	5,959	10,007
Provision (Credit)	(24)	(881)	(215)	(1,748)
Ending ALLL	5,744	8,259	5,744	8,259
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Property [Member]
Allowance for loan losses
Beginning ALLL	2,534	2,364	2,614	2,385
Charge-Offs		(64)		(64)
Recoveries	64		64	66
Provision (Credit)	(101)	225	(181)	138
Ending ALLL	2,497	2,525	2,497	2,525
Commercial Real Estate Portfolio Segment [Member] \| Investment Property [Member]
Allowance for loan losses
Beginning ALLL	14,410	12,367	14,248	11,933
Provision (Credit)	240	1,292	402	1,726
Ending ALLL	14,650	13,659	14,650	13,659
Commercial Portfolio Segment [Member] \| Commercial and Industrial Sector [Member]
Allowance for loan losses
Beginning ALLL	10,185	7,753	9,839	6,563
Charge-Offs		(46)		(46)
Recoveries	5	6	9	22
Provision (Credit)	1,273	(357)	1,615	817
Ending ALLL	11,463	7,356	11,463	7,356
Commercial Portfolio Segment [Member] \| Lease Financing [Member]
Allowance for loan losses
Beginning ALLL	1,803	1,036	1,772	884
Provision (Credit)	85	275	116	427
Ending ALLL	1,888	1,311	1,888	1,311
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Allowance for loan losses
Beginning ALLL	1	1	1	1
Ending ALLL	1	1	1	1
Consumer and Other Loans [Member]
Allowance for loan losses
Beginning ALLL	306	422	384	349
Charge-Offs	(14)	(14)	(25)	(25)
Recoveries	1	1	2	2
Provision (Credit)	26	(45)	(42)	38
Ending ALLL	$ 319	$ 364	$ 319	$ 364

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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