Note 14 - Stockholders' Equity and Regulatory Requirements (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

											For Classification
											Under Corrective
						Minimum					Action Plan
						Capital Adequacy					as Well Capitalized
	Amount		Ratio			Amount		Ratio			Amount		Ratio
The Bank						(dollars in thousands)
December 31, 2022
Leverage (Tier 1) capital	$	996,013		10.64	%	$	374,553		4.00	%	$	468,191		5.00	%
Risk-Based Capital:
CET 1	$	996,013		11.60		$	386,289		4.50		$	557,972		6.50
Tier 1		996,013		11.60			515,051		6.00			686,735		8.00
Total		1,117,733		13.02			686,735		8.00			858,419		10.00
December 31, 2021
Leverage (Tier 1) capital	$	891,730		11.43	%	$	312,166		4.00	%	$	390,207		5.00	%
Risk-Based Capital:
CET 1	$	891,730		11.96		$	335,641		4.50		$	484,815		6.50
Tier 1		891,730		11.96			447,522		6.00			596,696		8.00
Total		1,002,753		13.44			596,696		8.00			745,869		10.00

						Minimum Capital					For Classification
						Adequacy					as Well Capitalized
	Amount		Ratio			Amount		Ratio			Amount		Ratio
The Company	(dollars in thousands)
December 31, 2022
Leverage (Tier 1) capital	$	1,000,577		10.68	%	$	374,729		4.00	%		N/A		N/A
Risk-Based Capital:
CET 1	$	884,495		10.30		$	386,295		4.50			N/A		N/A
Tier 1		1,000,577		11.66			515,061		6.00			N/A		N/A
Total		1,240,047		14.45			686,748		8.00			N/A		N/A
December 31, 2021
Leverage (Tier 1) capital	$	909,577		11.65	%	$	312,194		4.00	%		N/A		N/A
Risk-Based Capital:
CET 1	$	793,495		10.64		$	335,648		4.50			N/A		N/A
Tier 1		909,577		12.19			447,531		6.00			N/A		N/A
Total		1,138,350		15.26			596,708		8.00			N/A		N/A