Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Taxes

Schedule of income tax expense

	2013		2012		2011
Current income tax expense	$	3,240	$	3,547	$	4,398
Deferred income tax expense		1,793		2,131		3,560
Income tax expense	$	5,033	$	5,678	$	7,958

Schedule of reconciliation of income taxes computed at the federal statutory rate to income tax expense

	2013						2012						2011
	Amount			Percent of Pretax Income			Amount			Percent of Pretax Income			Amount			Percent of Pretax Income
Income taxes computed at the federal statutory rate	$	6,942			35.0	%	$	7,735			35.0	%	$	10,550			35.0	%
(Reduction) increase in taxes resulting from:
Statutory depletion in excess of cost depletion		(1,965	)		(9.9	)		(2,048	)		(9.3	)		(2,366	)		(7.9	)
Manufacturing deduction		(299	)		(1.5	)		(335	)		(1.5	)		(308	)		(1.0	)
State income taxes, net of federal income tax benefit		132			0.7			331			1.5			24			0.1
Other		223			1.1			(5	)		(0.0	)		58			0.2
Income tax expense	$	5,033			25.4	%	$	5,678			25.7	%	$	7,958			26.4	%

Summary of the Company's deferred tax liabilities and assets

	December 31, 2013		December 31, 2012
Deferred tax liabilities
Lime and limestone property, plant and equipment	$	20,614	$	19,306
Natural gas interests drilling costs and equipment		3,680		3,952
Other		344		344
		24,638		23,602
Deferred tax assets
Alternative minimum tax credit carry forwards		5,866		6,489
Minimum pension liability		299		412
Fair value liability of interest rate hedges		557		956
Other		635		769
		7,357		8,626
Net deferred tax liabilities	$	17,281	$	14,976

        Current income taxes are classified on the Company's Consolidated Balance Sheets as follows:

Accrued expenses	$	0	$	307
Prepaid expenses and other current assets	$	203	$	0

        Deferred income taxes are classified on the Company's Consolidated Balance Sheets as follows:

Prepaid expenses and other current assets	$	518	$	678
Deferred tax liabilities, net	$	17,799	$	15,654