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NOTE 3 - LOANS/LEASES RECEIVABLE - Composition of the Loan Lease Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Gross loans/leases receivable	$ 3,910,519		$ 3,732,754
Less allowance	(41,104)	$ (41,164)	(39,847)	$ (37,545)	$ (36,532)	$ (34,356)
Net loans/leases receivable	3,869,415		3,692,907
Plus deferred loan/lease origination costs, net of fees	8,783		9,124
Loans and leases receivable	3,901,736		3,723,630
Commercial Portfolio Segment [Member]
Less allowance	(18,248)	(17,260)	(16,420)	(15,234)	(15,065)	(14,323)
Loans and leases receivable	1,548,657		1,429,410
Commercial Real Estate Portfolio Segment [Member]
Less allowance	(17,363)	(18,303)	(17,719)	(15,819)	(14,938)	(13,963)
Loans and leases receivable	1,837,473		1,766,111
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases receivable	494,638		500,654
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans and leases receivable	312,578		236,787
Commercial Real Estate Portfolio Segment [Member] \| Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases receivable	1,030,257		1,028,670
Finance Leases Portfolio Segment [Member]
Net minimum lease payments to be received			130,371
Net minimum lease receivable	111,764
Estimated unguaranteed residual values of leased assets	690		828
Unearned lease/residual income	(11,274)		(13,230)
Gross loans/leases receivable	103,940		121,611
Less allowance	(1,459)	(1,606)	(1,792)	(2,724)	(2,730)	(2,382)
Net loans/leases receivable	102,481		119,819
Plus deferred loan/lease origination costs, net of fees	2,760		3,642
Loans and leases receivable	101,180		117,969
Residential Portfolio Segment [Member]
Less allowance	(2,582)	(2,538)	(2,557)	(2,433)	(2,375)	(2,466)
Loans and leases receivable	293,479		290,759
Consumer Portfolio Segment [Member]
Less allowance	(1,452)	$ (1,457)	(1,359)	$ (1,335)	$ (1,424)	$ (1,222)
Loans and leases receivable	$ 120,947		$ 119,381