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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Reconciliation of income taxes at statutory rates

			Years ended December 31,
			2012		2011		2010
Income taxed at statutory rates			$           (34,860)		$             33,846		$             (7,008)
Increase (decrease) in taxes from:
	Stock-based compensation		147		113		98
	Debt discount interest		-		(2)		(182)
	Meals and entertainment		3		5		3
	Other adjustments		6		77		60
	Adjustment due to capital transactions		(733)		89		-
	Imputed interest		24		82		108
	Realized fx gain (loss) on intercompany balances		(3)		-		(1)
	Prior year provision to actual adjustments		(40)		987		1,829
	Differences in tax rates		3,905		1,930		630
	Effect of foreign exchange		(340)		603		(755)
	Change in effective tax rate		(333)		(764)		209
	Expiration of NOLs		70		1,526		-
	Change in valuation allowance		12,007		(2,970)		5,009
Income tax (benefit)/expense			$           (20,147)		$             35,522		$                      -

Schedule of Deferred Tax Assets and Liabilities

	December 31,
	2012		2011		2010
Deferred income tax assets
Excess tax basis over book basis of property, plant and equipment	$                 8,001		$                 6,011		$               6,495
Marketable securities	62		-		-
Operating loss carryforwards	37,635		26,772		20,945
Capital loss carryforwards	2,630		2,645		2,773
Other	3,219		2,023		1,407
Unrealized foreign exchange on loans	217		676		864
Total future tax assets	51,764		38,127		32,484
Valuation allowance for future tax assets	(41,817)		(29,291)		(31,886)
	9,947		8,836		598
Deferred income tax liabilities
Marketable securities	-		14,092		116
Other investments	24,839		29,784
Amayapampa disposal consideration	482		482		482
	25,321		44,358		598
Total Deferred Taxes	$             (15,374)		$             (35,522)		$                      -

Summary of Tax Credit Carryforwards and Expirations

		Noncapital
		Canada (1)			U.S.			Mexico			Barbados			Indonesia			Total
2012		$	-		$	-		$	-		$	-		$	-		$	-
2013			-			-			(282)			-			(383)			(665)
2014			(725)			-			(124)			-			(211)			(1,060)
2015			(889)			-			(322)			(9)			(385)			(1,605)
2016			-			-			(125)			(8)			(7)			(140)
2017			-			-			(533)			(12)			-			(545)
2018			-			-			(6,230)			(84)			-			(6,314)
2019			-			(519)			(1,138)			(63)			-			(1,720)
2020			-			(783)			(2,505)			(28)			-			(3,316)
2021			-			(779)			(8,735)			(50)			-			(9,564)
2022			-			(748)			(3,856)			-			-			(4,604)
2023			-			(691)			-			-			-			(691)
2024			-			(2,082)			-			-			-			(2,082)
2025			-			(2,362)			-			-			-			(2,362)
2026			(1,027)			(1,213)			-			-			-			(2,240)
2027			(847)			(1,700)			-			-			-			(2,547)
2028			(5,245)			(1,719)			-			-			-			(6,964)
2029			(4,022)			(1,971)			-			-			-			(5,993)
2030			(5,032)			(1,836)			-			-			-			(6,868)
2031			(3,806)			(3,408)			-			-			-			(7,214)
2032			(8,473)			(2,313)												(10,786)
		$	(30,066)		$	(22,124)		$	(23,850)		$	(254)		$	(986)		$	(77,280)

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

			Years ended December 31,
		2012			2011			2010
U.S.		$	(52,448)		$	109,895		$	(2,469)
Canada			(11,962)			(985)			(5,057)
Other Foreign			(26,393)			(21,842)			(12,494)
		$	(90,803)		$	87,068		$	(20,020)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

				Years ended December 31,
			2012			2011			2010
Current income tax expense (benefit)
	U.S.		$	-		$	-		$	-
	Canada			-			-			-
	Other Foreign			-			-			-
				-			-			-
Deferred income tax expense (benefit)
	U.S.			(20,147)			35,522			-
	Canada			-			-			-
	Other Foreign			-			-			-
				(20,147)			35,522			-
Total tax expense (benefit)			$	(20,147)		$	35,522		$	-

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of tax credit carryforwards available to reduce future taxable income, including amounts, expiration dates, limitations on use and the related deferred tax assets and valuation allowances.

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