Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 73,661	$ 82,500
Short-term investments	2,055	19,015
Restricted cash	3,290	4,085
Accounts receivable, net of allowance for doubtful accounts	56,525	80,610
Inventories	81,328	48,237
Assets held for sale		13,953
Prepaid expenses and other current assets	36,766	22,396
Total current assets	253,625	270,796
Property, plant and equipment, net	125,102	106,867
Purchased intangible assets, net	4,898	5,562
Goodwill	1,115	1,115
Other long-term assets	6,436	6,547
Total assets	391,176	390,887
Current liabilities:
Accounts payable	80,446	84,766
Notes payable and short-term borrowing	24,149	30,190
Current portion of long-term debt	5,458	747
Accrued and other current liabilities	40,725	30,625
Total current liabilities	150,778	146,328
Long-term debt, net of current portion	10,810	10,215
Other noncurrent liabilities	13,967	8,939
Total liabilities	175,555	165,482
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.0025 par value, 10,000 shares authorized, no shares issued or outstanding
Common stock, $0.0025 par value, 100,000 shares authorized, At June 30, 2017, 43,568 shares issued and outstanding; at December 31, 2016, 42,526 shares issued and outstanding	109	106
Additional paid-in capital	539,525	532,378
Accumulated other comprehensive loss	(4,472)	(8,401)
Accumulated deficit	(319,541)	(298,678)
Total stockholders' equity	215,621	225,405
Total liabilities and stockholders' equity	$ 391,176	$ 390,887

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.