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Note 17 - Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |
Interest Expense |  | $ | 6,851,541 |  |  | $ | 6,529,615 |  |  | $ | 6,536,994 |
Income Taxes |  | $ | 4,000,000 |  |  | $ | 3,365,000 |  |  | $ | 4,738,000 |
Schedule of Other Significant Noncash Transactions [Table Text Block] |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |
Acquisitions of Real Estate Through Loan Foreclosures |  | $ | 1,724,936 |  |  | $ | 5,664,554 |  |  | $ | 7,536,165 |
Change in Unrealized Gain (Loss) on AFS Investment Securities |  | $ | (608,355 | ) |  | $ | (890,590 | ) |  | $ | 622,155 |

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