Employee Benefit Plans (Details Textual) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan Contributions By Plan Participants Percentage			15.00%
Employer Matching Contribution Percentage	10.00%	25.00%
Defined Contribution Plan, Employer Discretionary Contribution Amount			$ 49,300	$ 98,300

As a percent of gross pay, the maximum percentage of contributions by plan participants to the employee savings plan which are eligible for employer matching contributions.

No definition available.

Name:	relv_DefinedContributionPlanContributionsByPlanParticipantsPercentage
Namespace Prefix:	relv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration