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Note 17 - Supplemental Cash Flow Information (Tables)
12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
   

2015

   

2014

   

2013

 
                         

Interest Expense

  $ 6,536,994     $ 7,898,543     $ 7,111,361  
                         

Income Taxes

  $ 4,738,000     $ 113,000     $ 173,883  
Schedule of Other Significant Noncash Transactions [Table Text Block]
   

2015

   

2014

   

2013

 
                         

Acquisitions of Real Estate Through Loan Foreclosures

  $ 7,536,165     $ 3,852,848     $ 10,251,006  
                         

Change in Unrealized Gain (Loss) on AFS Investment Securities

  $ 622,155     $ 6,409,171     $ (13,523,050 )