Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 17,853	$ 2,911
Marketable securities	0	16,612
Restricted marketable securities	0	2,566
Accounts receivable, net of allowance for doubtful accounts of $217 in 2014 and $2,449 in 2013	24,213	39,985
Inventories	37,803	27,793
Prepaid expenses and other	7,912	5,762
Total current assets	87,781	95,629
Property and equipment	5,279	9,901
Marketable securities	0	3,443
Intangible assets, net of accumulated amortization of $14,050 in 2014 and $12,983 in 2013	1,493	2,131
Other assets	467	361
Total assets	95,020	111,465
Current liabilities:
Accounts payable	34,540	24,538
Accrued expenses	23,844	23,271
Current portion of shareholder litigation	0	4,326
Short-term margin loan facility	0	2,566
Total current liabilities	58,384	54,701
Revolving credit facility	5,158	0
Other long-term liabilities	932	1,848
Non-current portion of shareholder litigation	0	10,000
Total liabilities	64,474	66,549
Commitments and Contingencies
Stockholders’ equity:
Preferred stock, par value $0.001; 2,000 shares authorized and none outstanding	0	0
Common stock, par value $0.001; 100,000 shares authorized, 45,742 and 34,097 shares issued and outstanding at December 31, 2014 and 2013, respectively	46	34
Additional paid-in capital	466,665	441,368
Accumulated other comprehensive income	0	5
Accumulated deficit	(411,165)	(371,491)
Stockholders' equity before treasury stock	55,546	69,916
Treasury stock at cost; 2,436 common shares at December 31, 2014 and 2013	(25,000)	(25,000)
Total stockholders’ equity	30,546	44,916
Total liabilities and stockholders’ equity	$ 95,020	$ 111,465