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v2.4.1.9

Organization and Plan of Merger (Details Textual) (IPO [Member], USD $) | 1 Months Ended
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Mar. 21, 2014 | Mar. 26, 2014
IPO [Member] |  |
Initial Public Offering Units | 2,650,000 rtgn_InitialPublicOfferingUnits / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember | 2,650,000 rtgn_InitialPublicOfferingUnits / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
Initial Public Offering Price Per Unit | $ 7.25 rtgn_InitialPublicOfferingPricePerUnit / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember | $ 7.25 rtgn_InitialPublicOfferingPricePerUnit / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember

X
- Definition Exercise price per share or per unit of public offering outstanding. + References No definition available. + Details
Name: | rtgn_InitialPublicOfferingPricePerUnit
Namespace Prefix: | rtgn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition This element represent initial public offering units + References No definition available. + Details
Name: | rtgn_InitialPublicOfferingUnits
Namespace Prefix: | rtgn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration