NOTE 3 - LOANS/LEASES RECEIVABLE - Loans by Internally Assigned Risk Rating (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Loans and leases	$ 4,138,596	$ 3,681,346
Commercial Portfolio Segment [Member]
Loans and leases	1,850,110	1,507,825
Commercial Portfolio Segment [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	1,696,455	1,365,847
Commercial Portfolio Segment [Member] | Pass [Member]
Loans and leases	1,643,654	1,334,446
Commercial Portfolio Segment [Member] | Special Mention [Member]
Loans and leases	29,046	12,962
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans and leases	23,755	18,439
Commercial Real Estate Portfolio Segment [Member]
Loans and leases	1,869,162	1,736,396
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	467,537	443,989
Commercial Real Estate Portfolio Segment [Member] | Construction Loans [Member]
Loans and leases	441,364	378,797
Commercial Real Estate Portfolio Segment [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	960,261	913,610
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	467,537	443,989
Commercial Real Estate Portfolio Segment [Member] | Internally Assigned Risk Rating [Member] | Construction Loans [Member]
Loans and leases	441,364	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	960,261	913,610
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	463,570	439,418
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Construction Loans [Member]
Loans and leases	430,206	378,572
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	883,724	896,206
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	857	3,044
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Construction Loans [Member]
Loans and leases	11,158	41
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	63,547	3,905
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	3,110	1,527
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Construction Loans [Member]
Loans and leases		184
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] | Other Non-owner Occupied Commercial Real Estate Loans [Member]
Loans and leases	12,990	13,499
Commercial and Commercial Real Estate Portfolio Segments [Member] | Internally Assigned Risk Rating [Member]
Loans and leases	$ 3,565,617	$ 3,102,243
As a % of Total	100.00%	100.00%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Pass [Member]
Loans and leases	$ 3,421,154	$ 3,048,642
As a % of Total	95.95%	98.28%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Special Mention [Member]
Loans and leases	$ 104,608	$ 19,952
As a % of Total	2.93%	0.65%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Substandard [Member]
Loans and leases	$ 39,855	$ 33,649
As a % of Total	1.12%	1.09%
Commercial and Commercial Real Estate Portfolio Segments [Member] | Doubtful [Member]
As a % of Total		0.01%