Note 11 - Other Borrowings and Unused Lines of Credit - Wholesale Structured Repurchase Agreement Collateralized Investment Securities (Details) - Wholesale structured repurchase agreements $ in Thousands	Dec. 31, 2018 USD ($)
Securities sold under repurchase agreements	$ 38,870
Less: overcollateralized position	3,870
Assets sold	35,000
Residential mortgage-backed and related securities
Securities sold under repurchase agreements	$ 38,870