Note K - Derivatives and Hedging (Details Textual) € in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)
Prepaid Expenses and Other Current Assets [Member]
Cash Flow Hedge Derivative Instrument Assets at Fair Value						$ 322,000	$ 528,000
Accrued Liabilities [Member]
Cash Flow Hedge Derivative Instrument Assets at Fair Value							45,000
Noncurrent Liabilities [Member]
Cash Flow Hedge Derivative Instrument Assets at Fair Value							$ 9,000
Cash Flow Hedging [Member]
Derivative Instruments, Gain Recognized in Other Comprehensive Income (Loss), Effective Portion	$ 424,000	$ 461,000	$ 482,000	$ 1.70
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	45,000	$ 426,000	7,000	$ 576,000
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	$ 0		$ 0
Derivative, Notional Amount					€ 13.7	15,300,000
Accumulated Other Comprehensive Income (Loss) Cumulative Cash Flow Hedges, Gain (Loss)						$ 234,000