Subsequent Event - Additional Information (Detail) (Subsequent Event [Member], USD $)	0 Months Ended
Apr. 02, 2014
Subsequent Event [Member]
Subsequent Event [Line Items]
Capitalized loan fees written off	$ 130,000
Minimum twelve-month trailing EBITDA	$ 1,500,000

Minimum Adjusted Ebitda Allowed For Trailing Twelve Months

No definition available.

Name:	cobr_MinimumAdjustedEbitdaAllowedForTrailingTwelveMonths
Namespace Prefix:	cobr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration