Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 112,740	$ 148,665
Restricted cash	1,580	1,580
Accounts receivable, net	14,941	16,047
Inventories, net	25,283	27,043
Prepaid inventories, net	1,723	1,804
Deferred tax assets, net	13,733	13,733
Prepaids and other current assets	14,143	10,298
Total current assets	184,143	219,170
Fixed assets, net	47,622	27,194
Precious metals	8,926	9,678
Deferred tax assets, net	52,952	55,861
Goodwill	2,784	2,784
Other long-term assets, net	1,943	2,023
Total assets	298,370	316,710
Current liabilities:
Accounts payable	63,141	90,582
Accrued liabilities	62,370	65,679
Deferred revenue	40,651	37,321
Total current liabilities	166,162	193,582
Other long-term liabilities	3,888	3,294
Total liabilities	170,050	196,876
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value: Authorized shares - 5,000; Issued and outstanding shares - none
Common stock, $0.0001 par value: Authorized shares - 100,000; Issued shares - 27,230 and 26,909; Outstanding shares - 24,027 and 23,785	2	2
Additional paid-in capital	364,997	361,706
Accumulated deficit	(154,148)	(161,644)
Treasury stock: Shares at cost - 3,203 and 3,124	(82,531)	(80,230)
Total stockholders’ equity	128,320	119,834
Total liabilities and stockholders’ equity	$ 298,370	$ 316,710