Note 6 - Other Real Estate Operations (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate [Abstract]
Other Revenue (Expense) from Real Estate Operations	$ (12,000)	$ (212,000)	$ 58,000

Amount of other revenue (expense) derived from real estate investments partnerships.

No definition available.

Name:	us-gaap_OtherRevenueExpenseFromRealEstateOperations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration