Note 14 - Business Segment Information (Tables)

12 Months Ended

Sep. 27, 2014

Segment Reporting [Abstract]

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Year Ended
	September 27,		September 28,		September 29,
(In thousands)	2014		2013		2012
Net sales:
United States	$	402,675	$	357,890	$	358,539
Foreign		6,303		6,006		4,764
Total	$	408,978	$	363,896	$	363,303
Long-lived assets:
United States	$	114,034	$	90,922	$	92,862
Foreign		-		-		-
Total	$	114,034	$	90,922	$	92,862

Revenue from External Customers by Products and Services [Table Text Block]

	Year Ended
	September 27,		September 28,		September 29,
(In thousands)	2014		2013		2012
Net sales:
Welded wire reinforcement	$	255,294	$	227,957	$	230,049
Prestressed concrete strand		153,684		135,939		133,254
Total	$	408,978	$	363,896	$	363,303