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Note A - Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Dec. 31, 2015
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended December 31, |  |  | Six Months Ended December 31, |
|  | 201 5 |  |  | 201 4 |  |  | 201 5 |  |  | 201 4 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 1,868 |  |  | $ | 1,081 |  |  | $ | 3,081 |  |  | $ | 1,568 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares outstanding |  |  | 6,510 |  |  |  | 6,808 |  |  |  | 6,515 |  |  |  | 6,822 |
Dilutive effect of stock options |  |  | 119 |  |  |  | 54 |  |  |  | 147 |  |  |  | 46 |
Diluted weighted average common shares outstanding |  |  | 6,629 |  |  |  | 6,862 |  |  |  | 6,662 |  |  |  | 6,868 |
Basic net income per common share |  | $ | 0.29 |  |  | $ | 0.16 |  |  | $ | 0.47 |  |  | $ | 0.23 |
Diluted net income per common share |  | $ | 0.28 |  |  | $ | 0.16 |  |  | $ | 0.46 |  |  | $ | 0.23 |

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