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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Subsidiary
Dec. 31, 2013
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Interest bearing amounts on deposit in excess of FDIC insurable limits $ 3,700,000us-gaap_CashUninsuredAmount  
Customer payment term for trade receivables, minimum 30 days  
Customer payment term for trade receivables, maximum 90 days  
Allowance for sales returns 910,000us-gaap_SalesReturnsAndAllowancesGoods 1,190,000us-gaap_SalesReturnsAndAllowancesGoods
Allowance for doubtful accounts receivable [Roll Forward]    
Balance, beginning of period 522,000us-gaap_AllowanceForDoubtfulAccountsReceivable 549,000us-gaap_AllowanceForDoubtfulAccountsReceivable
Additions charged to operations 734,243us-gaap_ProvisionForDoubtfulAccounts 3,690us-gaap_ProvisionForDoubtfulAccounts
Write-offs, net of recoveries (182,243)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs (30,690)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Balance, end of period 1,074,000us-gaap_AllowanceForDoubtfulAccountsReceivable 522,000us-gaap_AllowanceForDoubtfulAccountsReceivable
Inventories issued to active production 2,050,000cthr_InventoriesIssuedToActiveProduction 4,090,000cthr_InventoriesIssuedToActiveProduction
Obsolescence reserve for certain fashion finished jewelry inventory 250,000cthr_InventoryValuationReservesFashionFinishedJewelry 128,000cthr_InventoryValuationReservesFashionFinishedJewelry
Carrying value of inventory reserve for obsolescence of moissanite 31,000cthr_ReserveEstablishedForObsolescenceOfFinishedJewelryFeaturingMoissanite  
Property, Plant and Equipment [Line Items]    
Amortized life of patent 17 years  
Increase in depreciation expense 74,000cthr_IncreaseInDepreciationDueToChangeInLifeOfEnterpriseResourcePlanningSystem 58,000cthr_IncreaseInDepreciationDueToChangeInLifeOfEnterpriseResourcePlanningSystem
Maximum period for return of jewels and finished jewelry for credit 30 days  
Customer payment period on consignment shipment 60 days  
Other sales and marketing expenses 321,000us-gaap_OtherSellingAndMarketingExpense 1,030,000us-gaap_OtherSellingAndMarketingExpense
Advertising expense 1,840,000us-gaap_AdvertisingExpense 2,740,000us-gaap_AdvertisingExpense
Number of wholly owned operating subsidiaries 2cthr_NumberOfWhollyOwnedOperatingSubsidiaries  
Dividend yield (in hundredths) 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate  
Numerator [Abstract]    
Net loss $ (13,097,023)us-gaap_NetIncomeLoss $ (1,291,098)us-gaap_NetIncomeLoss
Weighted average common shares outstanding [Abstract]    
Basic (in shares) 20,295,618us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 19,904,170us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Stock options (in shares) 0us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 0us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Diluted (in shares) 20,295,618us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 19,904,170us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Net loss per common share [Abstract]    
Basic (in dollars per share) $ (0.65)us-gaap_EarningsPerShareBasic $ (0.06)us-gaap_EarningsPerShareBasic
Diluted (in dollars per share) $ (0.65)us-gaap_EarningsPerShareDiluted $ (0.06)us-gaap_EarningsPerShareDiluted
Stock Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Stock options to purchase shares (in shares) 1,670,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
1,200,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
Computer Software [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 3 years  
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Description of useful life, property, plant and equipment Shorter of the estimated useful life or the lease term  
Minimum [Member] | Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 5 years  
Minimum [Member] | Computer Hardware [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 3 years  
Minimum [Member] | Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 5 years  
Maximum [Member] | Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 12 years  
Maximum [Member] | Computer Hardware [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 5 years  
Maximum [Member] | Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, estimated useful lives 10 years