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Summary of Finite Lived Intangibles Assets by Major Class (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Indefinite Lived Intangibles | $ 340 | $ 340
Finite-Lived Intangible Assets [Member] | Customer-Related Intangible Assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 1,417 | 1,741
Accumulated amortization | (1,171) | (1,399)
Finite Lived Intangibles | 246 | 342
Finite-Lived Intangible Assets [Member] | Marketing-Related Intangible Assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 1,029 | 729
Accumulated amortization | (749) | (588)
Finite Lived Intangibles | $ 280 | $ 141

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