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Note 3 - Fair Value of Financial Instruments (Details Textual)	6 Months Ended
	Jun. 30, 2016
Maximum Maturity Period Of Investments	3 years

X

- Definition

The maximum maturity period of the investments.

+ References

No definition available.

+ Details

Name:	cutr_MaximumMaturityPeriodOfInvestments
Namespace Prefix:	cutr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration