BUSINESS SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment reporting information
Revenue, net	$ 255,352	$ 239,738	$ 757,255	$ 740,200
Cost of goods sold	208,810	201,365	620,036	611,973
Gross profit	46,542	38,373	137,219	128,227
Operating expenses	(44,767)	(46,314)	(132,950)	(143,573)
Other income (expense), net	1,049	(86)	1,795	(885)
Provision (benefit) for income taxes	131	(240)	182	(202)
Net income (loss)	2,693	(7,787)	5,882	(16,029)	2,473	(1,170)
Direct
Segment reporting information
Revenue, net	34,215	34,749	109,048	116,353
Cost of goods sold	30,684	32,472	99,422	105,733
Gross profit	3,531	2,277	9,626	10,620
Fulfillment partner
Segment reporting information
Revenue, net	221,137	204,989	648,207	623,847
Cost of goods sold	178,126	168,893	520,614	506,240
Gross profit	$ 43,011	$ 36,096	$ 127,593	$ 117,607