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STOCK OPTIONS AND OTHER EQUITY AWARDS (Details 4) (2013 Plan, USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 12 Months Ended
Dec. 11, 2014
Dec. 11, 2013
Sep. 30, 2014
Sep. 30, 2013
Mar. 31, 2015
Jan. 28, 2013
2013 Plan
           
STOCK OPTIONS AND OTHER EQUITY AWARDS            
Shares of common stock reserved for issuance           800,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member
Equity compensation payments (in shares)     24,827us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member
31,788us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member
   
Equity compensation payments $ 504us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member
$ 775us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member
       
Shares of common stock available for issuance         743,385us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= nutr_LongTermEquityIncentivePlan2013Member