Note 5 - Restructuring Costs (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended			36 Months Ended	12 Months Ended					0 Months Ended	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2013	Jun. 30, 2013 Executive Management Team [Member]	Jun. 30, 2013 Delta [Member] Related Spare Parts and Inventory [Member] Restructuring Program 2011 [Member]	Jun. 30, 2013 Delta [Member] Severance and Employee Benefits [Member] Restructuring Program 2011 [Member]	Jun. 30, 2013 Delta [Member] Other Miscellaneous Expense [Member] Restructuring Program 2011 [Member]	Jun. 30, 2013 Delta [Member] Restructuring Program 2011 [Member]	Jan. 31, 2012 Merfin [Member]	Jun. 30, 2011 Related Spare Parts and Inventory [Member] Restructuring Program 2011 [Member]	Jun. 30, 2011 Severance and Employee Benefits [Member] Restructuring Program 2011 [Member]	Jun. 30, 2011 Other Miscellaneous Expense [Member] Restructuring Program 2011 [Member]	Jun. 30, 2011 Restructuring Program 2011 [Member]
Note 5 - Restructuring Costs (Details) [Line Items]
Restructuring Charges	$ 9,918	$ 234	$ 1,082	$ 10,369	$ 1,080	$ 2,698	$ 5,462	$ 774	$ 8,934		$ 2,755	$ 5,602	$ 794	$ 9,151
Restructuring and Related Cost, Number of Positions Eliminated										4
Restructuring and Related Cost Incurred Cost Per Diluted Share (in Dollars per share)									$ 0.23
Retention Bonus Payments	$ 3,950	$ 2,600
Retention Bonus Payments Per Diluted Share (in Dollars per share)	$ 0.10	$ 0.07