XML 27 R47.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Major Category of Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring | Jun. 30, 2015 USD ($)
--- | ---
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | $ 28,991,544
Money market funds |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 4,613,256
U.S. Government and agency securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 13,319,827
Corporate and other debt securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 11,058,461
Quoted prices in active markets for identical assets (Level 1) |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 13,081,488
Quoted prices in active markets for identical assets (Level 1) | Money market funds |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 4,613,256
Quoted prices in active markets for identical assets (Level 1) | U.S. Government and agency securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 8,468,232
Significant other observable inputs (Level 2) |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 15,910,056
Significant other observable inputs (Level 2) | U.S. Government and agency securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | 4,851,595
Significant other observable inputs (Level 2) | Corporate and other debt securities |
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] |
Assets | $ 11,058,461

X
- Definition Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items] + References No definition available. + Details
Name: | rgen_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems
Namespace Prefix: | rgen_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |