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Note 12 - Condensed Financial Statements of Parent Company - Condensed Statements of Income (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income    
Other income $ 1,261 $ 1,093
Expenses    
Applicable income tax benefit 4,251 3,077
Net income 20,382 16,077
Parent Company [Member]    
Income    
Dividends from subsidiaries 14,508 22,000
Other income 1 4
Total income 14,509 22,004
Expenses    
Other expenses 1,135 1,179
Income before income tax benefit and equity in undistributed net income of subsidiaries 13,374 20,825
Applicable income tax benefit 293 301
Income before equity in undistributed net income of subsidiaries 13,667 21,126
Equity (deficit) in undistributed net income of subsidiaries 6,715 (5,049)
Net income $ 20,382 $ 16,077