Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Components of Income Tax Expense (Benefit)

Income tax expense (benefit) from continuing operations is composed of the following:



	Year Ended December 31,
	2015			2014			2013
Current:
Federal	$	8,954		$	—		$	(16	)
State	1,003			229			29
	9,957			229			13
Deferred:
Federal	3,174			5,010			(642		)
State	(904		)	(2,974		)	(85		)
	2,270			2,036			(727		)
Total	$	12,227		$	2,265		$	(714	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense (benefit) from continuing operations at the normal statutory federal rate to the provision included in the accompanying Consolidated Statements of Operations is shown below:



	Year Ended December 31,
	2015			2014			2013
"Expected" provision at federal statutory rate	$	13,446		$	9,116		$	(2,282	)
State income taxes, net	1,714			709			(705		)
Change in valuation allowance	(2,385		)	(7,618		)	2,222
Domestic production activity deduction	(1,002		)	—			—
Other	454			58			51
Income tax expense (benefit)	$	12,227		$	2,265		$	(714	)
Effective tax rate	31.8		%	8.7		%	10.9		%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of temporary differences giving rise to deferred income taxes shown on the consolidated balance sheets are as follows:



	December 31,
	2015			2014
Deferred income tax assets:
Post-retirement liability	$	1,848		$	1,968
Deferred income	1,343			1,637
Stock based compensation	2,247			2,108
Federal operating loss carryforwards	—			5,029
Capital loss carryforward	1,444			1,311
State tax credits	2,653			2,423
State operating loss carryforwards	2,216			4,574
Inventories	1,684			514
Other	2,224			2,891
Gross deferred income tax assets	$	15,659		$	22,455
Less: valuation allowance	(1,444		)	(3,829		)
Net deferred income tax assets	14,215			18,626
Deferred income tax liabilities:
Fixed assets	(16,050		)	(18,823		)
Other	(922		)	(1,176		)
Gross deferred income tax liabilities	(16,972		)	(19,999		)
Net deferred income tax liability	$	(2,757	)	$	(1,373	)

Summary of Valuation Allowance

A schedule of the change in valuation allowance is as follows:



	Valuation allowance
Balance at December 31, 2013	$	11,275
Reductions	7,446
Balance at December 31, 2014	$	3,829
Reductions	2,385
Balance at December 31, 2015	$	1,444

Schedule of Unrecognized Tax Benefits Roll Forward

The following is a reconciliation of the total amount of unrecognized tax benefits (excluding interest and penalties) for 2015, 2014, and 2013:



	Years Ended December 31,
	2015		2014		2013
Beginning of year balance	$	613	$	566	$	445
Additions for tax positions of prior years	—		8		62
Additions for tax positions of the current year	—		39		59
End of year balance	$	613	$	613	$	566