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Expected Power Generating Capacity

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Number Of Phases Of Construction

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Period to Start Remaining Phases of Construction After Commencement of First Phase

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- Definition

Power Plant Usage Agreement Term

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Power Utilization

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The proportionate share of interest (percent) in a jointly owned utility plant.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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The cash outflow from the amount invested for projects in hopes of getting a future return or interest from it.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity must commit resources to supply goods or services to one or more customers.

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Note 4 - Unconsolidated Investments (Details) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended
Note 4 - Unconsolidated Investments (Details) (USD $)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 04, 2014	May 23, 2014	May 16, 2014
Note 4 - Unconsolidated Investments (Details) [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax									$ (902,000)
Sales Revenue, Goods, Net	55,957,000us-gaap_SalesRevenueGoodsNet	37,736,000us-gaap_SalesRevenueGoodsNet	35,911,000us-gaap_SalesRevenueGoodsNet	47,619,000us-gaap_SalesRevenueGoodsNet	46,163,000us-gaap_SalesRevenueGoodsNet	41,755,000us-gaap_SalesRevenueGoodsNet	64,966,000us-gaap_SalesRevenueGoodsNet	50,608,000us-gaap_SalesRevenueGoodsNet	177,223,000us-gaap_SalesRevenueGoodsNet	203,492,000us-gaap_SalesRevenueGoodsNet	186,879,000us-gaap_SalesRevenueGoodsNet
Income (Loss) from Equity Method Investments	(2,003,000)	(899,000)	(114,000)	(197,000)	(101,000)	(158,000)	9,000		(3,213,000)	(250,000)	(2,522,000)
Payments to Acquire Projects									600,000us-gaap_PaymentsToAcquireProjects
Sarulla [Member] \| Subject to Fixed Interest Rate [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Senior Notes													100,000,000
Sarulla [Member] \| Subject to LIBOR based Interest Rate [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Senior Notes	1,070,000,000								1,070,000,000
Sarulla [Member] \| Subject to Fixed LIBOR Interest Rate [Member] \| Interest Rate Swap [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Senior Notes	960,000,000								960,000,000
Sarulla [Member] \| Interest Rate Swap [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate												3.4565%
Sarulla [Member] \| Interest Rate Swap [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Proceeds from Issuance of Senior Long-term Debt												50,000,000
Sarulla [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Jointly Owned Utility Plant, Proportionate Ownership Share	12.75%								12.75%
Expected Power Generating Capacity									330
Contract Effective Date									Apr. 04, 2013
Power Plant Usage Agreement Term									30 years
Number Of Phases Of Construction									3
Power Utilization									110
Period To Start Remaining Phases Of Construction After Commencement Of First Phase									18 months
Supply Commitment, Remaining Minimum Amount Committed	254,000,000								254,000,000
Sales Revenue, Goods, Net									38,200,000
Income (Loss) from Equity Method Investments									1,800,000
Sarulla [Member] \| Interest Rate Swap [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion									63,600,000
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax									8,100,000
Sarulla [Member] \| Lenders Consortium [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Senior Notes														$ 1,170,000,000
London Interbank Offered Rate (LIBOR) [Member]
Note 4 - Unconsolidated Investments (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate									1.00%