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Segment Reporting (Details Textual)	9 Months Ended
	Sep. 30, 2016 Segment Products
Segment Reporting (Textual) [Abstract]
Number of geographical segments | Segment	2
Number of primary products | Products	2

X

- Definition

Number of geographical segments.

+ References

No definition available.

+ Details

Name:	kvhi_NumberOfGeographicalSegments
Namespace Prefix:	kvhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of primary products.

+ References

No definition available.

+ Details

Name:	kvhi_NumberOfPrimaryProducts
Namespace Prefix:	kvhi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Segment reporting.

+ References

No definition available.

+ Details

Name:	kvhi_SegmentReportingTextualAbstract
Namespace Prefix:	kvhi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration