CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (21,949)	$ (31,163)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based employee compensation	611	1,760
Stock-based compensation for consulting and other services		475
Depreciation and amortization	8,169	7,864
Provision for doubtful accounts	483	201
Inventory reserve	(391)	748
Loss from equity in joint ventures	899	391
Loss on disposal of equipment	35	76
Impairment loss of long-lived assets	2,640	2,560
Deferred tax expense (benefit)	(54)	282
Loss on sale of marketable securities		871
Amortization of debt discount	1,167	1,186
Amortization of prepaid interest expense	127
Changes in assets and liabilities:
Accounts receivable	126	(2,899)
Notes receivable	1,492	(170)
Inventories	3,848	(795)
Prepaid expenses and other assets	(707)	1,190
Due from related parties	(1,779)	(261)
Accounts payable	1,164	7,240
Accrued liabilities	288	2,087
Advances from customers	1,328	1,815
Due to related parties	222
Net cash used in operating activities	(2,281)	(6,542)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sales of marketable securities		1,128
Acquisition of property and equipment	(2,199)	(2,506)
Proceeds from sales of equipment	17	39
Net cash flows used in investing activities	(2,182)	(1,339)
CASH FLOWS FROM FINANCING ACTIVITIES
Change in restricted cash	1,383	(5,644)
Proceeds from notes payable	39,145	8,000
Proceeds from short term loans	22,862	12,572
Proceeds from convertible bond	1,496
Repayments to related parties		(1,948)
Repayments of notes payable	(42,557)
Payments on short term loans	(16,940)	(9,295)
Net cash provided by financing activities	5,389	3,685
Effect of exchange rate changes on cash and cash equivalents	47	(7)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	973	(4,203)
CASH AND CASH EQUIVALENTS, beginning of year	1,656	5,859
CASH AND CASH EQUIVALENTS, end of year	2,629	1,656
Supplemental disclosure of cash flow information:
Cash paid during period for interest	1,627	1,541
Cash paid during period for taxes