Note 6 - Premises and Equipment (Details Textual) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2017
USD ($)
ft²
|
Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
|
| Depreciation, Depletion and Amortization, Nonproduction | $ 2,568,000 | $ 2,724,000 | $ 2,219,000 |
| Operating Leases, Rent Expense | $ 4,253,000 | $ 3,759,000 | $ 2,919,000 |
| New Headquarter in Birmingham, Alabama [Member] | |||
| Area of Real Estate Property | ft² | 97,500 | ||
| X | ||||||||||
- Definition Area of a real estate property. No definition available.
|
| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
|
| X | ||||||||||
- Details
|