Property, Plant, and Equipment (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Land and land improvements	$ 883,563us-gaap_LandAndLandImprovements	$ 883,563us-gaap_LandAndLandImprovements
Building	9,966,748us-gaap_BuildingsAndImprovementsGross	9,945,187us-gaap_BuildingsAndImprovementsGross
Machinery and equipment	4,355,040us-gaap_MachineryAndEquipmentGross	3,785,949us-gaap_MachineryAndEquipmentGross
Office equipment	1,235,192us-gaap_FurnitureAndFixturesGross	1,236,303us-gaap_FurnitureAndFixturesGross
Computer equipment and software	2,505,229relv_ComputerEquipmentAndSoftwareGross	2,690,294relv_ComputerEquipmentAndSoftwareGross
Property, plant, and equipment,Gross	18,945,772us-gaap_PropertyPlantAndEquipmentGross	18,541,296us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation	12,019,802	11,805,877
Property, plant, and equipment, net	$ 6,925,970us-gaap_PropertyPlantAndEquipmentNet	$ 6,735,419us-gaap_PropertyPlantAndEquipmentNet

Carrying amount as on the balance sheet date of computer equipment and software.

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 1

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-Topic 210

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-Section S99

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Subparagraph (b)

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

+ References

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- Definition

Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765

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- Definition

Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

+ References

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-Publisher FASB

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Subparagraph (SX 210.5-02.13)

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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-Subparagraph (SX 210.5-02.13)

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