EARNINGS PER SHARE (Narrative) (Details) - shares	3 Months Ended
May 31, 2018	May 31, 2017
Earnings Per Share [Abstract]
Diluted earnings per share for the conversion value of the notes	0	0

Diluted earnings of share for the conversion value of the notes.

No definition available.

Name:	camp_DilutedEarningsOfShareForTheConversionValueOfTheNotes
Namespace Prefix:	camp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration