Business Segment Information - Selected Financial Information for Polyester, Nylon, International and Other Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Dec. 25, 2016	Dec. 27, 2015
Segment Reporting Information [Line Items]
Net sales	$ 155,155	$ 156,336	$ 315,124	$ 318,501
Cost of sales	133,025	134,523	269,447	275,704
Gross profit	22,130	21,813	45,677	42,797
Segment depreciation expense	4,386	3,605	8,502	7,307
Segment Profit (Loss)	26,516	25,418	54,179	50,104
Polyester [Member]
Segment Reporting Information [Line Items]
Net sales	86,671	94,414	171,356	189,020
Cost of sales	76,200	82,102	152,435	167,110
Gross profit	10,471	12,312	18,921	21,910
Segment depreciation expense	3,384	2,781	6,492	5,632
Segment Profit (Loss)	13,855	15,093	25,413	27,542
Nylon [Member]
Segment Reporting Information [Line Items]
Net sales	28,302	35,767	56,797	72,405
Cost of sales	25,679	30,552	51,037	61,317
Gross profit	2,623	5,215	5,760	11,088
Segment depreciation expense	530	470	1,040	948
Segment Profit (Loss)	3,153	5,685	6,800	12,036
International [Member]
Segment Reporting Information [Line Items]
Net sales	38,868	24,812	84,212	54,183
Cost of sales	29,419	20,431	62,493	44,211
Gross profit	9,449	4,381	21,719	9,972
Segment depreciation expense	228	192	474	413
Segment Profit (Loss)	9,677	4,573	22,193	10,385
Other Segments [Member]
Segment Reporting Information [Line Items]
Net sales	1,314	1,343	2,759	2,893
Cost of sales	1,727	1,438	3,482	3,066
Gross profit	(413)	(95)	(723)	(173)
Segment depreciation expense	244	162	496	314
Segment Profit (Loss)	$ (169)	$ 67	$ (227)	$ 141