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Note G - Employee Benefit Plans (Details) (USD $)
12 Months Ended 0 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Large-cap Funds [Member]
Jun. 30, 2014
Mid-cap Funds [Member]
Jun. 30, 2014
Emerging Market Equity Funds [Member]
Jun. 30, 2014
International Equity Funds [Member]
Jun. 30, 2014
Short-term Fixed Income Funds [Member]
Jun. 30, 2014
High-yield Fixed Income Funds [Member]
Jun. 30, 2014
Intermediate Fixed Income Funds [Member]
Jun. 30, 2014
REIT and MPL Funds [Member]
Jun. 30, 2014
International Emerging Markets Funds [Member]
Jan. 01, 2004
First Contributions [Member]
Jan. 01, 2004
Next Contributions [Member]
Note G - Employee Benefit Plans (Details) [Line Items]                          
Defined Contribution Plan, Employer Matching Contribution, Percent of Match                       100.00% 50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay                       3.00% 2.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars) $ 184,000 $ 189,000                      
Health Insurance Plan Premium Expense (in Dollars) 956,000 937,000                      
Number Of Years Compensation Used For Benefit Obligation Assumptions 5 years                        
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.30% 4.80%                      
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year (in Dollars) $ 8,000                        
Defined Benefit Plan Equity Securities by Type, Percentage     70.00% 4.00% 6.00% 20.00%              
Defined Benefit Plan Debt Securities by Type, Percentage             17.00% 3.00% 53.00% 23.00% 4.00%