NOTE 3 - LOANS/LEASES RECEIVABLE - Allowance for Estimated Losses on Loans Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Balance	$ 39,847	$ 34,356
Provision for loan/lease losses	2,134	2,540
Loans/leases charged off	(1,060)	(436)
Recoveries on loans/leases previously charged off	243	73
Balance	41,164	36,533
Allowance for impaired loans/leases			$ 3,439	$ 3,659
Allowance for nonimpaired loans/leases			37,725	36,188
Less allowance for estimated losses on loans/leases	39,847	34,356	41,164	39,847
Impaired loans/leases			19,259	20,203
Nonimpaired loans/leases			3,770,965	3,703,427
Loans and leases			$ 3,790,224	$ 3,723,630
Allowance as a percentage of impaired loans/leases			17.86%	18.11%
Allowance as a percentage of nonimpaired loans/leases			1.00%	0.98%
Total allowance as a percentage of total loans/leases			1.08%	1.07%
Commercial Portfolio Segment [Member]
Balance	16,420	14,323
Provision for loan/lease losses	1,007	808
Loans/leases charged off	(334)	(95)
Recoveries on loans/leases previously charged off	166	30
Balance	17,259	15,066
Allowance for impaired loans/leases			$ 841	$ 973
Allowance for nonimpaired loans/leases			16,418	15,447
Less allowance for estimated losses on loans/leases	16,420	14,323	17,259	16,420
Impaired loans/leases			4,301	4,499
Nonimpaired loans/leases			1,474,946	1,424,911
Loans and leases			$ 1,479,247	$ 1,429,410
Allowance as a percentage of impaired loans/leases			19.55%	21.62%
Allowance as a percentage of nonimpaired loans/leases			1.11%	1.08%
Total allowance as a percentage of total loans/leases			1.17%	1.15%
Commercial Real Estate Portfolio Segment [Member]
Balance	17,719	13,963
Provision for loan/lease losses	534	965
Recoveries on loans/leases previously charged off	50	10
Balance	18,303	14,938
Allowance for impaired loans/leases			$ 2,113	$ 2,124
Allowance for nonimpaired loans/leases			16,190	15,595
Less allowance for estimated losses on loans/leases	17,719	13,963	18,303	17,719
Impaired loans/leases			10,155	10,447
Nonimpaired loans/leases			1,780,690	1,755,664
Loans and leases			$ 1,790,845	$ 1,766,111
Allowance as a percentage of impaired loans/leases			20.81%	20.33%
Allowance as a percentage of nonimpaired loans/leases			0.91%	0.89%
Total allowance as a percentage of total loans/leases			1.02%	1.00%
Finance Leases Portfolio Segment [Member]
Balance	1,792	2,382
Provision for loan/lease losses	445	605
Loans/leases charged off	(652)	(284)
Recoveries on loans/leases previously charged off	21	27
Balance	1,606	2,730
Allowance for impaired loans/leases			$ 142	$ 194
Allowance for nonimpaired loans/leases			1,464	1,598
Less allowance for estimated losses on loans/leases	1,792	2,382	1,606	1,792
Impaired loans/leases			2,185	2,249
Nonimpaired loans/leases			106,358	115,720
Loans and leases			$ 108,543	$ 117,969
Allowance as a percentage of impaired loans/leases			6.50%	8.63%
Allowance as a percentage of nonimpaired loans/leases			1.38%	1.38%
Total allowance as a percentage of total loans/leases			1.48%	1.52%
Residential Portfolio Segment [Member]
Balance	2,557	2,466
Provision for loan/lease losses	(18)	(39)
Loans/leases charged off		(52)
Balance	2,539	2,375
Allowance for impaired loans/leases			$ 236	$ 257
Allowance for nonimpaired loans/leases			2,303	2,300
Less allowance for estimated losses on loans/leases	2,557	2,466	2,539	2,557
Impaired loans/leases			1,693	2,110
Nonimpaired loans/leases			286,809	288,649
Loans and leases			$ 288,502	$ 290,759
Allowance as a percentage of impaired loans/leases			13.94%	12.18%
Allowance as a percentage of nonimpaired loans/leases			0.80%	0.80%
Total allowance as a percentage of total loans/leases			0.88%	0.88%
Consumer Portfolio Segment [Member]
Balance	1,359	1,222
Provision for loan/lease losses	166	201
Loans/leases charged off	(74)	(5)
Recoveries on loans/leases previously charged off	6	6
Balance	1,457	1,424
Allowance for impaired loans/leases			$ 107	$ 111
Allowance for nonimpaired loans/leases			1,350	1,248
Less allowance for estimated losses on loans/leases	$ 1,359	$ 1,222	1,457	1,359
Impaired loans/leases			925	898
Nonimpaired loans/leases			122,162	118,483
Loans and leases			$ 123,087	$ 119,381
Allowance as a percentage of impaired loans/leases			11.57%	12.38%
Allowance as a percentage of nonimpaired loans/leases			1.11%	1.05%
Total allowance as a percentage of total loans/leases			1.18%	1.14%