Note 16 - Revenue from Contracts with Customers - Summary of Revenue (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues	[1]	$ 39,074	$ 32,236	$ 31,481
Noninterest income, not in-scope(3)	[2],[3]	15,529	10,584	13,270
Total non-interest income		54,603	42,820	44,751
Fees and Services Charges on Deposit Account [Member]
Revenues	[1]	8,618	7,965	7,848
Wealth Management Fees [Member]
Revenues	[1]	15,056	10,529	9,241
Other Service Fees [Member]
Revenues	[1],[2]	$ 15,400	$ 13,742	$ 14,392

[1] There were no adjustments to the Company's financial statements recorded as a result of the adoption of ASC 606. For comparability, the Company has adjusted consolidated prior period amounts to conform to the periods presentation.

[2] Other service fees comprise of fees related to letters of credit, wire fees, fees on foreign exchange transactions and other immaterial individual revenue streams.

[3] These amounts primarily represent revenue from contracts with customers that are out of the scope of ASC 606.