NOTE 3 - LOANS/LEASES RECEIVABLE - Loans by Internally Assigned Risk Rating (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Loans and leases	$ 3,901,736	$ 3,723,630
Commercial Portfolio Segment [Member]
Loans and leases	1,548,657	1,429,410
Commercial Portfolio Segment [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	1,426,033	1,326,006
Commercial Portfolio Segment [Member] | Pass [Member]
Loans and leases	1,398,762	1,294,418
Commercial Portfolio Segment [Member] | Special Mention [Member]
Loans and leases	9,811	23,302
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans and leases	17,460	8,286
Commercial Real Estate Portfolio Segment [Member]
Loans and leases	1,837,473	1,766,111
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	494,638	500,654
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans and leases	312,578	236,787
Commercial Real Estate Portfolio Segment [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	1,030,257	1,028,670
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	494,638	500,654
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Construction Loans [Member]
Loans and leases	312,578	236,787
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	1,030,257	1,028,670
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	487,200	487,949
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Construction Loans [Member]
Loans and leases	308,269	230,473
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	1,008,427	1,008,626
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	4,236	9,599
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Construction Loans [Member]
Loans and leases	64	3,848
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	5,802	5,309
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	3,202	3,106
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Construction Loans [Member]
Loans and leases	4,245	2,466
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	16,028	14,735
Commercial and Commercial Real Estate Portfolio Segments [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	$ 3,263,506	$ 3,092,117
As a % of Total	100.00%	100.00%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Pass [Member]
Loans and leases	$ 3,202,658	$ 3,021,466
As a % of Total	98.14%	97.72%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Special Mention [Member]
Loans and leases	$ 19,913	$ 42,058
As a % of Total	0.61%	1.36%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Substandard [Member]
Loans and leases	$ 40,935	$ 28,593
As a % of Total	1.25%	0.92%