NOTE 3 - LOANS/LEASES RECEIVABLE - Loans by Internally Assigned Risk Rating (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans and leases	$ 3,695,859	$ 3,681,346
Commercial Portfolio Segment [Member]
Loans and leases	1,484,979	1,507,825
Commercial Portfolio Segment [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	1,339,720	1,365,847
Commercial Portfolio Segment [Member] | Pass [Member]
Loans and leases	1,309,540	1,334,446
Commercial Portfolio Segment [Member] | Special Mention [Member]
Loans and leases	11,805	12,962
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans and leases	18,375	18,439
Commercial Real Estate Portfolio Segment [Member]
Loans and leases	1,783,086	1,736,396
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	454,955	443,989
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans and leases	410,383	378,797
Commercial Real Estate Portfolio Segment [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	917,748	913,610
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	454,955	443,989
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Construction Loans [Member]
Loans and leases	410,383	378,797
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	917,748	913,610
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	449,463	439,418
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Construction Loans [Member]
Loans and leases	408,341	378,572
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	884,112	896,206
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	3,665	3,044
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Construction Loans [Member]
Loans and leases	722	41
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	18,546	3,905
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	1,827	1,527
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Construction Loans [Member]
Loans and leases	1,320	184
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	15,090	13,499
Commercial and Commercial Real Estate Portfolio Segments [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	$ 3,122,806	$ 3,102,243
As a % of Total	100.00%	100.00%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Pass [Member]
Loans and leases	$ 3,051,456	$ 3,048,642
As a % of Total	97.72%	98.28%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Special Mention [Member]
Loans and leases	$ 34,738	$ 19,952
As a % of Total	1.11%	0.65%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Substandard [Member]
Loans and leases	$ 36,612	$ 33,649
As a % of Total	1.17%	1.09%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Doubtful [Member]
As a % of Total		0.01%