Note 18 - Employee Benefit Plans - Information Pertaining to Activity in the Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Projected benefit obligation at beginning of year	$ 5,821	$ 6,262	$ 5,812
Service cost	0	0	0
Interest cost	91	152	209
Actuarial (gain) loss	(259)	814	489
Settlement gain (loss)	6	44	(12)
Benefits paid	(646)	(1,451)	(236)
Projected benefit obligation at end of year	5,013	5,821	6,262
Fair value of plan assets at beginning of year	4,701	5,915	5,653
Actual return on plan assets	190	237	498
Employer contributions	800	0	0
Benefits paid	(646)	(1,451)	(236)
Fair value of plan assets at end of year	5,045	4,701	5,915
Funded Status at End of Year	32	(1,120)	(347)
Other assets (liabilities)	32	(1,120)	(347)
Net actuarial loss	1,481	2,071	1,658
Deferred income taxes	(320)	(435)	(358)
Amount recognized	1,161	1,636	1,300
Service cost	0	0	0
Interest cost	91	152	209
Expected return on plan assets	(230)	(285)	(269)
Recognized net loss due to settlement	195	352	52
Recognized net actuarial loss	182	140	133
Net periodic benefit cost	238	359	125
Net actuarial (gain) loss	590	(413)	(64)
Amortization of prior service cost	(0)	(0)	(0)
Total recognized in other comprehensive (income) loss	(590)	413	64
Total Recognized in Net Periodic Benefit Cost and Other Comprehensive (Income) Loss	$ (352)	$ 772	$ 189