Note 2 - Segment Information (Detail) - Segment Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011	Jun. 30, 2011
Net sales	$ 217,065	$ 237,782	$ 684,229	$ 649,373
Operating income (loss)	32	17	32	63
Total assets	842,118		842,118		869,851
Capital expenditures			46,206	41,132
Specialty Fibers [Member]
Net sales	169,989	181,334	530,071	479,449
Operating income (loss)	40,268	43,965	126,019	100,550
Depreciation and amortization of intangibles	7,856	8,447	24,540	24,394
Total assets	488,190	519,656	488,190	519,656
Capital expenditures	19,501	8,535	39,996	36,800
Nonwoven Materials [Member]
Net sales	54,188	64,488	177,180	195,035
Operating income (loss)	3,016	3,074	8,109	8,494
Depreciation and amortization of intangibles	3,916	3,885	12,142	11,118
Total assets	185,739	221,321	185,739	221,321
Capital expenditures	1,670	1,143	5,033	3,714
Corporate [Member]
Net sales	(7,112)	(8,040)	(23,022)	(25,111)
Operating income (loss)	(2,937)	(3,023)	(60,313)	(9,837)
Depreciation and amortization of intangibles	971	934	2,874	2,826
Total assets	168,189	132,160	168,189	132,160
Capital expenditures	572	18	1,013	618
Total [Member]
Net sales	217,065	237,782	684,229	649,373
Operating income (loss)	40,347	44,016	73,815	99,207
Depreciation and amortization of intangibles	12,743	13,266	39,556	38,338
Total assets	842,118	873,137	842,118	873,137
Capital expenditures	$ 21,743	$ 9,696	$ 46,042	$ 41,132