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COMMITMENTS AND CONTINGENCIES: Schedule of significant off-balance sheet commitments (Details) $ in Thousands | Dec. 31, 2016 USD ($)
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Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Contract or Notional Amount | $ 135,689
Commitments to originate loans: | Adjustable-rate |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Contract or Notional Amount | 24,100
Commitments to originate loans: | Fixed-rate |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Contract or Notional Amount | 5,464
Standby letters of credit |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Contract or Notional Amount | 1,439
Undisbursed loan funds and unused lines of credit |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Contract or Notional Amount | $ 104,686

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