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