CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net cash used in operating activities (Note 15)	$ (8,740)	$ (16,788)
Cash flows from investing activities:
Sale of available for sale investments		198
Proceeds from sale of assets	1	3,842
Capitalized costs and acquisitions of property, plant and equipment	(7)	(1,667)
Net cash (used in) provided by investing activities	(6)	2,373
Net decrease in cash and cash equivalents	(8,746)	(14,415)
Cash and cash equivalents - beginning of period	19,146	44,406
Cash and cash equivalents - end of period	$ 10,400	$ 29,991