| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
A reconciliation of the numerators and denominators of the basic and diluted earnings per common share computations for the three and nine months ended September 30, 2016 and 2015 are as follows:
| | | Three Months Ended | | | Nine Months Ended | | | (Dollars in thousands, except per share data) | | September 30, | | | September 30, | | | | | 2016 | | | 2015 | | | 2016 | | | 2015 | | | Basic earnings per common share:
| | | | | | | | | | | | | | | | | | Net income as reported
| | $ | 2,328 | | | $ | 1,921 | | | $ | 6,813 | | | $ | 5,823 | | | Weighted average common shares outstanding
| | | 2,860,157 | | | | 2,851,417 | | | | 2,858,019 | | | | 2,850,594 | | | Basic earnings per common share
| | $ | 0.81 | | | $ | 0.67 | | | $ | 2.38 | | | $ | 2.04 | | | Diluted earnings per common share:
| | | | | | | | | | | | | | | | | | Net income as reported
| | $ | 2,328 | | | $ | 1,921 | | | $ | 6,813 | | | $ | 5,823 | | | Weighted average common shares outstanding
| | | 2,860,157 | | | | 2,851,417 | | | | 2,858,019 | | | | 2,850,594 | | | Add: Dilutive effect of assumed stock option exercises
| | | 750 | | | | - | | | | 750 | | | | - | | | Weighted average common and dilutive potential common shares outstanding
| | | 2,860,907 | | | | 2,851,417 | | | | 2,858,769 | | | | 2,850,594 | | | Diluted earnings per common share
| | $ | 0.81 | | | $ | 0.67 | | | $ | 2.38 | | | $ | 2.04 | |
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