Income Taxes (The Consist of Deferred Income Tax Assets And Liabilities) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule Of Deferred Income Tax Assets And Liabilities [Line Items]
Deferred tax assets, Current	$ 735us-gaap_DeferredTaxAssetsGrossCurrent	$ 4,502us-gaap_DeferredTaxAssetsGrossCurrent
Deferred tax assets, Non-current	2,930	4,943
Valuation allowance, Current	(2,741)	(2,747)
Valuation allowance, Non-current	(10,353)	(3,175)
Deferred tax liabilities, Current	(1,040)us-gaap_DeferredTaxLiabilitiesCurrent	(655)us-gaap_DeferredTaxLiabilitiesCurrent
Deferred tax liabilities, Non-current	(3,055)	(8,790)
Deferred tax assets (liabilities), Current	(305)	3,847
Deferred tax assets (liabilities), Noncurrent	(430)	(3,847)
Federal [Member]
Schedule Of Deferred Income Tax Assets And Liabilities [Line Items]
Deferred tax assets, Current	2,699	6,329
Deferred tax assets, Non-current	11,857	7,230
Deferred tax liabilities, Current	(805)	(477)
Deferred tax liabilities, Non-current	(2,103)	(6,615)
State [Member]
Schedule Of Deferred Income Tax Assets And Liabilities [Line Items]
Deferred tax assets, Current	777	886
Deferred tax assets, Non-current	1,426	868
Deferred tax liabilities, Current	(219)	(124)
Deferred tax liabilities, Non-current	(538)	(1,697)
Foreign [Member]
Schedule Of Deferred Income Tax Assets And Liabilities [Line Items]
Deferred tax assets, Current	0	34
Deferred tax assets, Non-current	0	20
Deferred tax liabilities, Current	(16)	(54)
Deferred tax liabilities, Non-current	$ (414)	$ (478)

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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