Note 5 - Loans (Details Textual) xbrli-pure in Thousands, $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Mar. 31, 2018
USD ($)
|
Mar. 31, 2017
USD ($)
|
Dec. 31, 2017
USD ($)
|
|
| Financing Receivable, Modifications, Recorded Investment | $ 18.8 | $ 7.3 | $ 20.6 |
| Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down | $ 5.1 | $ 2.3 | $ 4.3 |
| Financing Receivable, Modifications, Subsequent Default, Number of Contracts | 0 | 0 | |
| X | ||||||||||
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Reflects the amount of the write-down related to a troubled debt restructuring. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|