Note 5 - Fair Value - Financial Assets and Liabilities Measured at Fair Value on a Non-recurring Basis (Details) - Commercial Real Estate - Other [Member] - Fair Value, Nonrecurring [Member] $ in Thousands	Jun. 30, 2019 USD ($)
Fair Value	$ 59
Fair Value, Inputs, Level 1 [Member]
Fair Value
Fair Value, Inputs, Level 2 [Member]
Fair Value
Fair Value, Inputs, Level 3 [Member]
Fair Value	$ 59