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Note D - Other Comprehensive Loss - Other Comprehensive (Loss) Income (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Balance $ (680)  
Balance (905) $ (680)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]    
Balance (775) (643)
OCI/OCL before reclassifications 271 (232)
Amounts reclassified from OCI 175 19
Tax effect of OCI activity (162) 81
Net current period OCI/OCL 284 (132)
Balance (491) (775)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]    
Balance 95 (123)
OCI/OCL before reclassifications (110) 414
Amounts reclassified from OCI (685) (74)
Tax effect of OCI activity 286 (122)
Net current period OCI/OCL (509) 218
Balance (414) 95
AOCI Attributable to Parent [Member]    
Balance (680) (766)
OCI/OCL before reclassifications 161 182
Amounts reclassified from OCI (510) (55)
Tax effect of OCI activity 124 (41)
Net current period OCI/OCL (225) 86
Balance $ (905) $ (680)