Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Cash flows from operating activities:
Net (loss) income	$ (2,508)		$ 3,447
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	5,746		5,067
Amortization of debt costs	180		180
Amortization of exclusivity agreements	346		311
Provision for doubtful accounts	108		1,368
Deferred income taxes	(246)		(6)
Share-based compensation	1,187		1,943
Excess income tax benefit on employee stock-based compensation	(29)		(78)
Other	14		421
Change in operating assets and liabilities:
Trade accounts receivable	(2,607)		9,665
Inventories	2,487		(2,106)
Prepaid expenses and other current assets	(3,464)		4,843
Trade accounts payable	(6,670)		(7,247)
Other current liabilities	(4,606)		(162)
Long-term assets	130		(1,553)
Long-term liabilities	(280)		(1,039)
Net cash (used in) provided by operating activities	(10,212)		15,054
Cash flows from investing activities:
Capital expenditures for property, plant and equipment	(3,691)		(6,029)
Capital expenditures for intangible assets	(46)		(44)
Sale of other investments	32		(506)
Net cash used in investing activities	(3,705)		(6,579)
Cash flows from financing activities:
Net proceeds from issuance of common shares	5,542		2,143
Repayment of bank borrowings, net			(15)
Changes in restricted cash	4,502		(8,141)
Excess income tax benefit on employee stock-based awards	29		78
Net cash provided by (used in) financing activities	10,073		(5,935)
Effect of exchange rate changes on cash	37		(433)
Net (decrease) increase in cash and cash equivalents	(3,807)		2,107
Cash and cash equivalents at the beginning of the period	28,924		30,767
Cash and cash equivalents at the end of the period	$ 25,117	[1]	$ 32,874

[1] Unaudited