SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Sep. 30, 2013		Mar. 31, 2013
Financial information of segments
NET SALES	$ 229,331	$ 229,331		$ 200,586
INTERSEGMENT SALES		4,398		4,497
OPERATING PROFIT	11,825	11,825	[1]	10,294	[1]
Office
Financial information of segments
NET SALES		146,083		137,480
INTERSEGMENT SALES		473		642
OPERATING PROFIT		1,062	[1]	2,002	[1]
Studio
Financial information of segments
NET SALES		55,727		38,438
INTERSEGMENT SALES		1,310		1,522
OPERATING PROFIT		5,492	[1]	4,142	[1]
Coverings
Financial information of segments
NET SALES		27,521		24,668
INTERSEGMENT SALES		2,615		2,333
OPERATING PROFIT		$ 5,271	[1]	$ 4,150	[1]

[1] The Company does not allocate interest expense or other (income) expense, net to the reportable segments.