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Equity (Details 5) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation $ 1,279,295us-gaap_ShareBasedCompensation $ 717,863us-gaap_ShareBasedCompensation
Awards under the 2013 EIP [Member]    
Share-based Compensation 1,269,150us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_AwardsUnderEipMember		 679,550us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_AwardsUnderEipMember
Awards outside the equity-based plans [Member]    
Share-based Compensation 10,145us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_AwardsOutsideEipMember		 38,313us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_AwardsOutsideEipMember
Salaries and wages [Member]    
Share-based Compensation 1,154,767us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_SalariesAndWagesMember		 564,737us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_SalariesAndWagesMember
Consulting expense [Member]    
Share-based Compensation 10,145us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_ConsultingExpenseMember		 16,278us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= nuot_ConsultingExpenseMember
General and administrative [Member]    
Share-based Compensation $ 114,383us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 $ 136,848us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember