v2.4.1.9
STOCK-BASED COMPENSATION (Details 1) (USD $)
12 Months Ended
Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 11,988,188us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Options, Outstanding, Weighted Average Remaining Life in Years 6 years 8 months 23 days
Options Exercisable, Shares 7,064,133us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Options, Exercisable, Weighted Average Exercise Price $ 0.49us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Aggregate Intrinsic Value $ 7,223,132us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
Stock Options One [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 580,300us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Options, Outstanding, Weighted Average Remaining Life in Years 3 years 7 months 6 days
Options Exercisable, Shares 580,300us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Options, Exercisable, Weighted Average Exercise Price $ 0.22us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Aggregate Intrinsic Value 682,957us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Range of Excercise Prices, Lower Limit $ 0.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Range of Excercise Prices, Upper Limit $ 0.25us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsOneMember
Stock Options Two [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 8,532,888us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Options, Outstanding, Weighted Average Remaining Life in Years 6 years 3 months 11 days
Options Exercisable, Shares 6,076,833us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Options, Exercisable, Weighted Average Exercise Price $ 0.34us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Aggregate Intrinsic Value 6,470,305us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Range of Excercise Prices, Lower Limit $ 0.26us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Range of Excercise Prices, Upper Limit $ 0.40us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsTwoMember
Stock Options Three [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 2,741,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Options, Outstanding, Weighted Average Remaining Life in Years 9 years 18 days
Options Exercisable, Shares 273,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Options, Exercisable, Weighted Average Exercise Price $ 1.26us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Aggregate Intrinsic Value 69,870us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Range of Excercise Prices, Lower Limit $ 1.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Range of Excercise Prices, Upper Limit $ 2.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsThreeMember
Stock Options Four [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 17,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Options, Outstanding, Weighted Average Remaining Life in Years 1 year 11 months 26 days
Options Exercisable, Shares 17,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Options, Exercisable, Weighted Average Exercise Price $ 6.36us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Aggregate Intrinsic Value 0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Range of Excercise Prices, Lower Limit $ 6.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Range of Excercise Prices, Upper Limit $ 7.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFourMember
Stock Options Five [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 109,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Options, Outstanding, Weighted Average Remaining Life in Years 1 year 2 months 16 days
Options Exercisable, Shares 109,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Options, Exercisable, Weighted Average Exercise Price $ 7.57us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Aggregate Intrinsic Value 0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Range of Excercise Prices, Lower Limit $ 7.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Range of Excercise Prices, Upper Limit $ 8.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsFiveMember
Stock Options Six [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, Shares 7,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember
Options, Outstanding, Weighted Average Remaining Life in Years 1 year 10 months 10 days
Options Exercisable, Shares 7,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember
Options, Exercisable, Weighted Average Exercise Price $ 9.00us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember
Aggregate Intrinsic Value $ 0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember
Range of Excercise Prices, Lower Limit $ 8.01us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember
Range of Excercise Prices, Upper Limit $ 9.00us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
/ us-gaap_AwardTypeAxis
= rox_StockOptionsSixMember