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Note F - Defined Benefit Pension Plan | 6 Months Ended
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Dec. 31, 2015
Notes to Financial Statements |
Pension and Other Postretirement Benefits Disclosure [Text Block] | F. Defined Benefit Pension Plan We sponsor a defined benefit pension plan that provides retirement benefits to employees based generally on years of service and compensation during the last five years before retirement. Effective June 20, 1999, we adopted an amendment to freeze benefit accruals to the participants. We contribute an amount not less than the minimum funding requirements of the Employee Retirement Income Security Act of 1974 nor more than the maximum tax-deductible amount. The components included in the net periodic expense for the three- and six-month periods ended December 31 were as follows (in thousands):
|  | Three Months Ended December 31, |  |  | Six Months Ended December 31, |
|  | 201 5 |  |  | 201 4 |  |  | 201 5 |  |  | 201 4 |
Interest cost |  | $ | 23 |  |  | $ | 21 |  |  | $ | 46 |  |  | $ | 42 |
Expected return on plan assets |  |  | (11 | ) |  |  | (8 | ) |  |  | (21 | ) |  |  | (17 | )
Net periodic expense |  | $ | 12 |  |  | $ | 13 |  |  | $ | 25 |  |  | $ | 25 |

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