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v2.4.1.9

Property, Plant and Equipment - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 0 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Oct. 09, 2013
Property Plant And Equipment [Line Items] |  |  |
Depreciation charges | $ 563 us-gaap_Depreciation | $ 390 us-gaap_Depreciation |
Gain on sale of property and improvements |  | 143 us-gaap_GainLossOnSaleOfPropertyPlantEquipment |
Cost of sales |  |  |
Property Plant And Equipment [Line Items] |  |  |
Depreciation charges | 428 us-gaap_Depreciation / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember | 228 us-gaap_Depreciation / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember |
Selling, General and Administrative Expenses |  |  |
Property Plant And Equipment [Line Items] |  |  |
Depreciation charges | 135 us-gaap_Depreciation / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember | 162 us-gaap_Depreciation / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember |
Other Income |  |  |
Property Plant And Equipment [Line Items] |  |  |
Gain on sale of property and improvements |  |  | $ 128 us-gaap_GainLossOnSaleOfPropertyPlantEquipment / us-gaap_IncomeStatementLocationAxis = us-gaap_OtherIncomeMember

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
Period Type: |