Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 28,043	$ 57,101
Short-term investments		17,916
Restricted cash and investments	12,386	2,138
Accounts receivable, net of allowance for doubtful accounts	79,248	64,533
Inventories	63,992	64,908
Prepaid expenses and other current assets	13,815	9,977
Total current assets	197,484	216,573
Property, plant and equipment, net	66,038	68,851
Restricted cash and investments, non-current	14,000
Purchased intangible assets, net	12,956	15,005
Other long-term assets	1,913	1,798
Total assets	292,391	302,227
Current liabilities:
Accounts payable	54,347	48,569
Notes payable and short-term borrowing	20,086	9,738
Current portion of long-term debt	10,465	10,325
Accrued and other current liabilities	18,336	23,643
Total current liabilities	103,234	92,275
Long-term debt, net of current portion	17,465	24,150
Deferred income tax liabilities	1,221	1,004
Other noncurrent liabilities	8,121	7,987
Total liabilities	130,041	125,416
Commitments and contingencies (Note 10)
Stockholders’ equity:
Preferred stock, $0.0025 par value At June 30, 2014 and December 31, 2013: 10,000 shares authorized, no shares issued or outstanding
Common stock, $0.0025 par value At June 30, 2014: 100,000 shares authorized, 32,151 shares issued and outstanding; At December 31, 2013: 100,000 shares authorized, 31,572 shares issued and outstanding	81	79
Additional paid-in capital	453,087	447,467
Accumulated other comprehensive income	10,971	11,687
Accumulated deficit	(301,789)	(282,422)
Total stockholders’ equity	162,350	176,811
Total liabilities and stockholders’ equity	$ 292,391	$ 302,227