| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net Income Available to Common Stockholders | | $ | | | | $ | 5,997,687 | | | $ | 4,843,021 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Weighted Average Number of Common Shares Outstanding for Basic Earnings Per Common Share | | | | | | | 8,439,258 | | | | 8,439,258 | | Dilutive Effect of Potential Common Stock | | | | | | | | | | | | | | | | | | | | | 19,203 | | | | - | | Weighted-Average Number of Shares Outstanding for Diluted Earnings Per Common Share | | | | | | | 8,458,461 | | | | 8,439,258 | | | | | | | | | | | | | | | | Earnings Per Share - Basic | | $ | | | | $ | 0.71 | | | $ | 0.57 | | | | | | | | | | | | | | | | Earnings Per Share - Diluted | | $ | | | | $ | 0.71 | | | $ | 0.57 | | |