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Note 11 - Derivative Instruments and Hedging Activities - Notional or Contractual Amounts and Fair Values of Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Notional or contractual amount $ 12,278 $ 16,700
Derivative assets 0 0
Derivative liabilities 837 1,131
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]    
Notional or contractual amount 4,388 4,772
Derivative assets 0 0
Derivative liabilities 229 465
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]    
Notional or contractual amount 7,890 11,928
Derivative assets 0 0
Derivative liabilities $ 608 $ 666