Note 15 - 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 ($)
Assets, Fair Value Disclosure, Nonrecurring	$ 59
Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure, Nonrecurring
Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure, Nonrecurring
Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure, Nonrecurring	$ 59