Note 17 - Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
 
 
201
6
 
  
2015
    
2014
  
                         
Interest Expense
 
$
6,529,615
 
   $
6,536,994
     $
7,898,543
  
                         
Income Taxes
 
$
3,365,000
 
   $
4,738,000
     $
113,000
  
Schedule of Other Significant Noncash Transactions [Table Text Block]
 
 
201
6
 
  
2015
    
2014
  
                         
Acquisitions of Real Estate
Through Loan Foreclosures
 
$
5,664,554
 
   $
7,536,165
     $
3,852,848
  
                         
Change in Unrealized Gain (Loss) on AFS Investment
Securities
 
$
(890,590
)
   $
622,155
     $
6,409,171