Note 6 - Other Real Estate Owned (Details)	Dec. 31, 2015
Commercial, Construction, and Residential [Member] \| Other Real Estate Owned [Member]
Note 6 - Other Real Estate Owned (Details) [Line Items]
Number of Real Estate Properties	14

The number of real estate properties owned as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant