XML 24 R55.htm IDEA: XBRL DOCUMENT v2.4.1.9
Margin for Borrowings under Revolving Credit Facility (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Revolving Credit Facility  
Debt Instrument [Line Items]  
Average Daily Availability 37,100,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
Level III | Revolving Credit Facility | Minimum  
Debt Instrument [Line Items]  
Average Daily Availability 20,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelHighMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Level III | Domestic Base Rate  
Debt Instrument [Line Items]  
Loans Rate 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelHighMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
Level III | London Interbank Offered Rate  
Debt Instrument [Line Items]  
Loans Rate 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelHighMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Level II | Revolving Credit Facility | Minimum  
Debt Instrument [Line Items]  
Average Daily Availability 10,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelMediumMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Level II | Revolving Credit Facility | Maximum  
Debt Instrument [Line Items]  
Average Daily Availability 20,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelMediumMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Level II | Domestic Base Rate  
Debt Instrument [Line Items]  
Loans Rate 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelMediumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
Level II | London Interbank Offered Rate  
Debt Instrument [Line Items]  
Loans Rate 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelMediumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Level I | Revolving Credit Facility | Maximum  
Debt Instrument [Line Items]  
Average Daily Availability 10,000,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelLowMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Level I | Domestic Base Rate  
Debt Instrument [Line Items]  
Loans Rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelLowMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
Level I | London Interbank Offered Rate  
Debt Instrument [Line Items]  
Loans Rate 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_InternalCreditAssessmentAxis
= us-gaap_RiskLevelLowMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember