Accrued expenses and liabilities (Details Textual) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Accrued Angel Machine Refurbishment Costs	$ 465,000	$ 600,000

The amount represents accrued angel machine refurbishment costs as on the reporting period.

No definition available.

Name:	nuot_AccruedAngelMachineRefurbishmentCosts
Namespace Prefix:	nuot_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant