Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ (8,242)	$ 2,388	$ 3,259	$ 13,749
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	8,263	6,646	16,197	12,496
Realized loss on marketable securities				9
Loss on disposition of fixed asset				(1)
Stock-based compensation to employees and directors	1,708	2,485	4,279	4,906
Amortization of debt discount	60	209	242	395
(Gain) loss from early extinguishment of debt	27	(204)	(115)	(204)
Restructuring reversals		(136)	(433)	(136)
Changes in operating assets and liabilities:
Restricted cash	147	1,486	533	1,357
Accounts receivable, net	6,918	3,355	1,643	628
Inventories, net	11,044	(2,351)	4,656	(9,557)
Prepaid inventories, net	405	161	1,041	(812)
Prepaids and other assets	(4,321)	(793)	(3,160)	1,192
Other long-term assets, net	230	(1,277)	1,292	(940)
Accounts payable	(28,513)	(36,351)	(1,477)	15,849
Accrued liabilities	(8,773)	(14,991)	3,643	(2,992)
Deferred revenue	(2,573)	(479)	1,268	2,853
Other long-term liabilities	84	(86)	(144)	(328)
Net cash provided by (used in) operating activities	(23,536)	(39,938)	32,724	38,464
Cash flows from investing activities:
Purchases of marketable securities	(79)	(63)	(152)	(63)
Purchases of intangible assets			(396)
Sale of marketable securities prior to maturity				(9)
Investment in precious metals		(90)	(1,567)	(90)
Expenditures for fixed assets, including internal-use software and website development	(4,024)	(14,827)	(9,708)	(18,579)
Net cash used in investing activities	(4,103)	(14,980)	(11,823)	(18,741)
Cash flows from financing activities:
Payments on capital lease obligations	(568)	(357)	(701)	(551)
Capitalized financing costs				(245)
Proceeds from finance obligations	748		17,131
Payments on finance obligations	(2,066)		(2,907)
Paydown on direct financing arrangement	(106)	(96)	(207)	(208)
Payments to retire convertible senior notes	(10,110)	(9,048)	(25,927)	(9,048)
Purchase of redeemable stock			(26)
Purchase of treasury stock	(1,600)	(818)	(1,607)	(825)
Exercise of stock options		1,488	15	1,517
Net cash used in financing activities	(13,702)	(8,831)	(14,229)	(9,360)
Net increase (decrease) in cash and cash equivalents	(41,341)	(63,749)	6,672	10,363
Cash and cash equivalents, beginning of period	124,021	139,757	76,008	65,645
Cash and cash equivalents, end of period	82,680	76,008	82,680	76,008
Cash paid during the period:
Interest paid	1,191	1,342	2,383	2,838
Taxes paid	260	187	260	187
Non-cash investing and financing activities:
Fixed assets, including internal-use software and website development, costs financed through accounts payable and accrued liabilities	354	1,146	3	1,146
Equipment acquired under finance obligations	3,686		4,285	(139)
Equipment and software acquired under capital lease obligations			6
Lapse of rescission rights of redeemable stock	473		733
Issuance of common stock from treasury for 401(k) matching contribution		$ 87		$ 441