XML 43 R33.htm IDEA: XBRL DOCUMENT v3.7.0.1

Note 1 - Organization and Nature of Business Operations (Details Textual)	Apr. 01, 2017
Number of Business Locations	83

X

- Definition

The number of business locations of the company.

+ References

No definition available.

+ Details

Name:	nvee_NumberOfBusinessLocations
Namespace Prefix:	nvee_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant