Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Schedule of components of income tax provision (benefit)

of the income tax (benefit) expense are as follows (in thousands):

	Year ended December 31,
	2012			2011		2010
Current:
Federal	$	12,072		$	4,550	$	(2,729	)
State	1,450			1,211		137
Foreign	891			883		658
Total current	14,413			6,644		(1,934		)
Deferred:
Federal	(18,836		)	1,107		(3,499		)
State	90			111		(112		)
Total deferred	(18,746		)	1,218		(3,611		)
Income tax (benefit) expense	$	(4,333	)	$	7,862	$	(5,545	)

Schedule of effective income tax rate reconciliation

A reconciliation of the effective tax rate to the U.S. federal statutory tax rate is as follows:

	Year ended December 31,
	2012		2011		2010
Federal statutory tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal benefit	2.3		2.3		0.1
Change in valuation allowance	(41.0	)	(8.5	)	(8.4	)
Warrant liability fair value adjustment	(2.0	)	(8.5	)	(15.3	)
Other	(3.8	)	(0.3	)	(0.1	)
Effective income tax rate	(9.5	)%	20.0	%	11.3	%

Schedule of deferred tax assets and liabilities

The components of deferred tax assets and liabilities are as follows (in thousands):

	December 31,
	2012			2011
Deferred tax assets:
Net operating loss carryforwards	$	12,285		$	12,218
Allowance for doubtful accounts	262			212
Inventory valuation reserves	1,109			1,185
Equity compensation	4,216			1,769
Intangible assets and goodwill	13,061			15,228
Foreign tax credit carryforwards	—			841
Other	2			32
Total gross deferred tax assets	30,935			31,485
Valuation allowance	(835		)	(19,460		)
Total deferred tax assets, net	30,100			12,025
Deferred tax liabilities:
Property and equipment	(8,227		)	(5,327		)
Convertible debt	(4,785		)	(8,559		)
Prepaid insurance and other	(520		)	(78		)
Total gross deferred tax liabilities	(13,532		)	(13,964		)
Net deferred tax assets (liabilities)	$	16,568		$	(1,939	)

Deferred taxes are presented in the balance sheets as follows (in thousands):

	December 31,
	2012			2011
Current deferred tax assets	$	1,274		$	841
Non-current deferred tax assets	16,045			—
Non-current deferred tax liabilities	(751		)	(2,780		)
Net deferred tax assets (liabilities)	$	16,568		$	(1,939	)