Note 22 - Leases - Balance Sheet, Income Statement, and Cash Flow Detail Regarding Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Operating lease right-of-use asset	$ 15,937		$ 15,937		$ 12,100
Operating lease liability	$ 17,462		$ 17,462		$ 13,476
Weighted average remaining lease term (years) (Year)	9 years 8 months 12 days		9 years 8 months 12 days		8 years 7 months 6 days
Weighted average discount rate	3.02%		3.02%		3.37%
One year or less	$ 1,307		$ 1,307		$ 2,087
Year two	2,634		2,634		2,107
Year three	2,673		2,673		2,141
Year four	2,408		2,408		1,899
Year five	1,924		1,924		1,469
Greater than five years	9,308		9,308		5,882
Total lease payments	20,254		20,254		15,585
Less imputed interest	2,792		2,792		2,109
Total	17,462		17,462		$ 13,476
Operating lease cost	520	$ 473	1,007	$ 943
Variable lease cost	62	45	113	87
Less sublease income	13	25	27	38
Total lease cost	$ 569	$ 493	1,093	992
Cash paid for operating lease liabilities			$ 1,190	$ 1,104