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Income Taxes | 9 Months Ended | 12 Months Ended
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Sep. 30, 2016 | Dec. 31, 2015
Income Tax Disclosure [Abstract] |  |
Income Taxes | 16. Income Taxes The Company calculates its interim income tax provision in accordance with ASC 740. At the end of each interim period, the Company makes an estimate of the annual expected effective tax rate and applies that rate to its ordinary year to date earnings or loss. In addition, the effect of changes in enacted tax laws, rates or tax status is recognized in the interim period in which the change occurs. The computation of the annual expected effective tax rate at each interim period requires certain estimates and assumptions including, but not limited to, the expected operating income for the year, projections of the proportion of income (or loss) earned and taxed in foreign jurisdictions, permanent and temporary differences, and the likelihood of recovering deferred tax assets generated in the current year. The accounting estimates used to compute the provision for income taxes may change as new events occur, more experience is acquired or additional information is obtained. The computation of the annual effective tax rate includes modifications, which were projected for the year, for share based compensation, the domestic manufacturing deduction and state research and development credits among others. For the three months ended September 30, 2016 and 2015, the Company’s statutory rate was 35%; the effective tax rate was approximately (5.5%) and (5,513%), respectively, based on the statutory federal rate net of discrete federal and state taxes. The computation of the annual effective tax rate includes modifications, which were projected for the year, for share based compensation, the domestic manufacturing deduction, interest expense and state income tax credits among others. The main driver of the difference between 2016 and 2015 was the change in the forecasted pretax income between the quarters as well as significant variances in the discrete items in each quarter. For the nine months ended September 30, 2016 and 2015, the Company’s statutory rate was 35%; the effective tax rate was approximately 56% and (19%), respectively, based on the statutory federal rate net of discrete federal and state taxes. The computation of the annual effective tax rate includes modifications, which were projected for the year, for share based compensation, the domestic manufacturing deduction, interest expense and state income tax credits among others. The tax benefit for the nine months ended September 30, 2016 also includes a 7% discrete rate impact for a provision-to-return adjustment associated with a change in estimate related to expenses that are not deductible for tax purposes. | 15. Income Taxes The provision for income taxes consists of the following:
|  | 2015 |  |  | 2014 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | 245 |  |  | $ | 819 |
State and local |  |  | 184 |  |  |  | 320 |
Total current expense |  |  | 429 |  |  |  | 1,139 |
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | 3,610 |  |  |  | 8,199 |
State and local |  |  | 90 |  |  |  | 180 |
Total deferred income tax expense |  |  | 3,700 |  |  |  | 8,379 |
Total income tax expense |  | $ | 4,129 |  |  | $ | 9,518 |
Income tax expense related to operations differs from the amounts computed by applying the statutory income tax rate of 35% to pretax income as follows:
|  | 2015 |  |  | 2014 |
At statutory rate |  | $ | 3,192 |  |  | $ | 5,976 |
Non-deductible interest expense |  |  | 1,777 |  |  |  | 2,136 |
State taxes, net of US federal benefit |  |  | 211 |  |  |  | 393 |
Change in valuation allowance |  |  | — |  |  |  | — |
Change in applicable tax rate |  |  | — |  |  |  | 308 |
Costs associated with possible restructuring |  |  | (940 | ) |  |  | 913 |
Other |  |  | (111 | ) |  |  | (208 | )
Total income tax expense |  | $ | 4,129 |  |  | $ | 9,518 |
Deferred income taxes reflect the net tax effects of loss and credit carry-forwards and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets for federal and state income taxes are as follows:
December 31, |  | 2015 |  |  | 2014 |
Deferred tax assets: |  |  |  |  |  |  |  |
Reserves and accruals |  | $ | 537 |  |  | $ | 431 |
Total gross deferred tax assets |  |  | 537 |  |  |  | 431 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Prepaid expenses and other |  |  | 122 |  |  |  | (304 | )
Depreciation, amortization and depletion |  |  | (15,164 | ) |  |  | (10,932 | )
Total gross deferred tax liabilities |  |  | (15,042 | ) |  |  | (11,236 | )
Less: current net deferred tax assets |  |  | — |  |  |  | (225 | )
Noncurrent deferred tax liabilities, net |  | $ | (14,505 | ) |  | $ | (11,030 | )
In assessing the realizability of deferred tax assets, the Company considered whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the period in which those temporary differences become deductible. At December 31, 2015 and 2014, based on the Company’s future income projections, management determined it was more likely than not that the Company will be able to realize the benefits of the deductible temporary differences. As of December 31, 2015 and 2014, the Company determined no valuation allowance was necessary. The Company has no state net operating losses as of December 31, 2015 and 2014, respectively. The Company has evaluated its tax positions taken as of December 31, 2015 and 2014 and believes all positions taken would be upheld under examination from income taxing authorities. Therefore, no liability for the effects of uncertain tax positions has been recorded in the accompanying consolidated balance sheets as of December 31, 2015 or 2014. The Company is open to examination by taxing authorities since incorporation.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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