Note D - Accumulated Other Comprehensive (Loss) Income (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
Revenue, Net	$ 45,000	$ 426,000	$ 7,000	$ 576,000
Other Nonoperating Income (Expense)	24,000	4,000	51,000	9,000
Revenue, Net	26,911,000	18,618,000	48,496,000	37,313,000
Other Nonoperating Income (Expense)	$ (2,000)	$ (15,000)	$ (10,000)	$ (24,000)