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Summary of Significant Accounting Policies (Policy) | 12 Months Ended
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Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract] |
Basis of Presentation and Consolidation | Basis of Presentation and Consolidation The consolidated financial statements include the accounts of Hallador Energy Company (the Company) and its wholly-owned subsidiary Sunrise Coal, LLC (Sunrise) and Sunrise’s wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. We are engaged in the production of steam coal from mines located in western Indiana. We own a 40% equity interest in Savoy Energy, L.P., a private oil and gas company which has operations in Michigan and a 50% interest in Sunrise Energy, LLC, a private entity engaged in natgas operations in the same vicinity as the Carlisle mine.
Reclassification | Reclassification To maintain consistency and comparability, certain amounts in the 2013 financial statements have been reclassified to conform to current year presentation.
Inventories | Inventories Coal and supplies inventories are valued at the lower of average cost or market. Coal inventory costs include labor, supplies, equipment costs (including depreciation thereto) and overhead.
Advance Royalties | Advance Royalties Coal leases that require minimum annual or advance payments and are recoverable from future production are generally deferred and charged to expense as the coal is subsequently produced.
Coal Properties | Coal Properties Coal properties are recorded at cost. Interest costs applicable to major asset additions are capitalized during the construction period. Expenditures that extend the useful lives or increase the productivity of the assets are capitalized. The cost of maintenance and repairs that do not extend the useful lives or increase the productivity of the assets are expensed as incurred. Other than land and mining equipment, coal properties are depreciated using the units-of-production method over the estimated recoverable reserves. Surface and underground mining equipment is depreciated using estimated useful lives ranging from three to twenty-five years. If facts and circumstances suggest that a long-lived asset may be impaired, the carrying value is reviewed for recoverability. If this review indicates that the carrying value of the asset will not be recoverable through estimated undiscounted future net cash flows related to the asset over its remaining life, then an impairment loss is recognized by reducing the carrying value of the asset to its estimated fair value.
Mine Development | Mine Development Costs of developing new coal mines, including asset retirement obligation assets, or significantly expanding the capacity of existing mines, are capitalized and amortized using the units-of-production method over estimated recoverable reserves.
Asset Retirement Obligations (ARO) - Reclamation | Asset Retirement Obligations (ARO) - Reclamation At the time they are incurred, legal obligations associated with the retirement of long-lived assets are reflected at their estimated fair value, with a corresponding charge to mine development. Obligations are typically incurred when we commence development of underground and surface mines, and include reclamation of support facilities, refuse areas and slurry ponds. Obligations are reflected at the present value of their future cash flows. We reflect accretion of the obligations for the period from the date they are incurred through the date they are extinguished. The asset retirement obligation assets are amortized using the units-of-production method over estimated recoverable (proved and probable) reserves. We are using discount rates ranging from 5.5% to 10%. Federal and state laws require that mines be reclaimed in accordance with specific standards and approved reclamation plans, as outlined in mining permits. Activities include reclamation of pit and support acreage at surface mines, sealing portals at underground mines, and reclamation of refuse areas and slurry ponds. We assess our ARO at least annually and reflect revisions for permit changes, changes in our estimated reclamation costs and changes in the estimated timing of such costs. The table below (in thousands) reflects the changes to our ARO:
|  | 2014 |  |  | 2013
Balance beginning of year |  | $ | 5,290 |  |  | $ | 2,573
Accretion |  |  | 534 |  |  |  | 182
Vectren acquistion |  |  | 6,550 |  |  |  |
Additions |  |  |  |  |  |  | 2,535
Other |  |  | (300 | ) |  |  |
Balance end of year |  | $ | 12,074 |  |  | $ | 5,290
Statement of Cash Flows | Statement of Cash Flows Cash equivalents include investments with maturities when purchased of three months or less.
Income Taxes | Income Taxes Income taxes are provided based on the liability method of accounting. The provision for income taxes is based on pretax financial income. Deferred tax assets and liabilities are recognized for the future expected tax consequences of temporary differences between income tax and financial reporting and principally relate to differences in the tax basis of assets and liabilities and their reported amounts, using enacted tax rates in effect for the year in which differences are expected to reverse.
Net Income per Share | Net Income per Share Basic net income per share is computed on the basis of the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include restricted stock units and are included in basic net income per share.
Use of Estimates in the Preparation of Financial Statements | Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual amounts could differ from those estimates. The most significant estimates included in the preparation of the financial statements are related to (i) fair value estimates relating to business combinations, (ii) deferred income tax assets and liabilities, and (iii) coal reserves.
Derivatives | Derivatives We recognize at fair value all contracts meeting the definition of a derivative as assets or liabilities in the consolidated balance sheet, with the exception of our coal contracts for which we elected to apply a normal purchases and normal sales exception. Changes in fair value are recognized into income.
Business Combinations | Business Combinations We account for business combinations using the purchase method of accounting. The purchase method requires us to determine the fair value of all acquired assets, including identifiable intangible assets and all assumed liabilities. The total cost of acquisitions is allocated to the underlying identifiable net assets, based on their respective estimated fair values. Determining the fair value of assets acquired and liabilities assumed requires management's judgment and the utilization of independent valuation experts, and often involves the use of significant estimates and assumptions, including assumptions with respect to future cash inflows and outflows, discount rates and asset lives, among other items.
Revenue Recognition | Revenue Recognition We recognize revenue from coal sales at the time risk of loss passes to the customer at contracted amounts and amounts are deemed collectible.
Long-term Contracts | Long-term Contracts As of December 31, 2014, we are committed to supply to our customers 32 million tons of coal through 2024 of which 14 million tons are priced. During 2014 five of our customers accounted for 75% of our coal sales: one for 35%, the second for 12%, the third for 11%, the fourth for 9% and the fifth for 8%. During 2013, four of our customers accounted for 94% of our coal sales: one for 39%, the second for 29%, the third for 14% and the fourth for 12%. We are paid every two to four weeks and do not expect any credit losses.
Stock-based Compensation | Stock-based Compensation Stock-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense over the applicable vesting period of the stock award (generally two to four years) using the straight-line method.
New Accounting Pronouncements | New Accounting Pronouncements None of the recent FASB pronouncements will have any material effect on us.
Subsequent Events | Subsequent Events We have evaluated all subsequent events through the date the financial statements were issued. No material recognized or non-recognizable subsequent events were identified.
Correction of Immaterial Errors- Cost of Sales | Correction of Immaterial Errors- Cost of Sales 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. Management evaluated the materiality of all the errors described above from a qualitative and quantitative perspective. Based on such evaluation, we have concluded that while the accumulation of these errors was significant to the year ended December 31, 2014, their correction would not be material to any individual prior period, nor did they have an effect on the trend of financial results, taking into account the requirements of the Securities and Exchange Commission (SEC) Staff Accounting Bulletin No. 108, Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements (SAB 108). Accordingly, we are correcting these errors in every affected period in the 2014 and 2013 Consolidated Financial Statements included in this Form 10-K.

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- Definition Disclosure of accounting policy for determining amounts to accrue and charge against earnings so as to satisfy legal obligations associated with the retirement (through sale, abandonment, recycling, or disposal in some other manner) of a tangible long-lived asset that result from the acquisition, construction, or development and (or) the normal operation of a long-lived asset. This accounting policy disclosure excludes obligations arising 1) in connection with leased property, whether imposed by a lease agreement or by a party other than the lessor, that meet the definition of either minimum lease payments or contingent rentals; 2) solely from a plan to sell or otherwise dispose of a long-lived asset and 3) from certain environmental remediation liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2175671 + Details
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