Coal supply commitment

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- Definition

Priced coal supply commitment

+ References

No definition available.

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- Definition

Year Supply Commitments End

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB

-Name Accounting Standards Codification

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Description of a prior period adjustment to previously issued financial statements, including an adjustment that is a correction of an error. At a minimum, the description may include the nature and reasons for the adjustment and the periods affected by the adjustment, as well as (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustment (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Amount of each individual error being corrected in the correcting adjustment.

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Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended		3 Months Ended	24 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014
Revenue, Major Customer [Line Items]
Error correction amount		$ 483,000
Description of error corrections	During the fourth quarter of 2014, we identified errors to the consolidated financial statements for the years 2011 - 2014 (and for all interim periods therein) related to operating costs. We were inappropriately reconciling parts and supplies inventory related to a parts and components agreement with one of our vendors and the error was discovered when we were comparing amounts for the fourth quarter of 2014. The effect of correcting these errors to the 2013 consolidated financial statements was to decrease net income by $731,000. The effect for 2011 and 2012 totaled $483,000 and is reflected as a reduction in beginning retained earnings. The effect for 2014 was to reduce fourth quarter net income by $334,000.
Reduction of Net Income [Member]
Revenue, Major Customer [Line Items]
Error correction amount		731,000	334,000
Reduction in Beginning Retained Earnings [Member]
Revenue, Major Customer [Line Items]
Error correction amount				$ 483,000
Sales Revenue, Goods, Net [Member] \| Five Customers [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	75.00%
Sales Revenue, Goods, Net [Member] \| Four Customers [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales		94.00%
Sales Revenue, Goods, Net [Member] \| Customer One [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	35.00%	39.00%
Sales Revenue, Goods, Net [Member] \| Customer Two [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	12.00%	29.00%
Sales Revenue, Goods, Net [Member] \| Customer Three [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	11.00%	14.00%
Sales Revenue, Goods, Net [Member] \| Customer Four [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	9.00%	12.00%
Sales Revenue, Goods, Net [Member] \| Customer Five [Member]
Revenue, Major Customer [Line Items]
Percentage of total coal sales	8.00%
Coal Supply Commitment [Member]
Revenue, Major Customer [Line Items]
Coal supply commitment	32,000,000
Year that supply commitments end	2024
Priced coal supply commitment	14,000,000
Savoy [Member]
Revenue, Major Customer [Line Items]
Equity method investment ownership percentage	40.00%				45.00%
Sunrise Energy [Member]
Revenue, Major Customer [Line Items]
Equity method investment ownership percentage	50.00%
Minimum [Member]
Revenue, Major Customer [Line Items]
Discount rate	5.50%
Estimated useful lives	P3Y
Maximum [Member]
Revenue, Major Customer [Line Items]
Discount rate	10.00%
Estimated useful lives	P25Y