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Note 1 - Summary of Significant Accounting Policies - 10Q (Details) (USD $)
6 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Sep. 30, 2013
Note 1 - Summary of Significant Accounting Policies - 10Q (Details) [Line Items]        
Real Estate Acquired Through Foreclosure (in Dollars) $ 16,658,000 $ 16,658,000 $ 28,113,000 $ 9,835,000
Pension and Other Postretirement Benefit Contributions (in Dollars) 441,000 991,000 139,000  
Evaluation for Impairment Threshold, Amount (in Dollars)   250,000    
Commercial and Residential Lots [Member]
       
Note 1 - Summary of Significant Accounting Policies - 10Q (Details) [Line Items]        
Real Estate Acquired Through Foreclosure (in Dollars) $ 6,600,000 $ 6,600,000    
Minimum [Member]
       
Note 1 - Summary of Significant Accounting Policies - 10Q (Details) [Line Items]        
Property, Plant and Equipment, Estimated Useful Lives   3    
Maximum [Member]
       
Note 1 - Summary of Significant Accounting Policies - 10Q (Details) [Line Items]        
Property, Plant and Equipment, Estimated Useful Lives   40