Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of the required periodic payments applied to principal.

+ References

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPaymentPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Accreted Difference Between Face Value Of Amount Drawn And Acquisition Date Fair Value

+ References

No definition available.

+ Details

Name:	xon_AccretedDifferenceBetweenFaceValueOfAmountDrawnAndAcquisitionDateFairValue
Namespace Prefix:	xon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount available under research and development grant

+ References

No definition available.

+ Details

Name:	xon_AmountAvailableUnderFinancialGrantForResearchAndDevelopment
Namespace Prefix:	xon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount claimed under research and development grant to date

+ References

No definition available.

+ Details

Name:	xon_AmountClaimedUnderFinancialGrant
Namespace Prefix:	xon_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Length of period during which amounts can be claimed under research and development grant

+ References

No definition available.

+ Details

Name:	xon_GovernmentAwardClaimPeriod
Namespace Prefix:	xon_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of royalty on products commercialized under research and development grant

+ References

No definition available.

+ Details

Name:	xon_RateOfRoyaltyAgreedToBePaid
Namespace Prefix:	xon_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=xon_TransOvaGeneticsLcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=xon_AmericanStateBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=xon_IowaEconomicDevelopmentAuthorityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=xon_ExemplarGeneticsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=xon_RoyaltybasedFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=xon_AquaBountyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=xon_AtlanticCanadaOpportunitiesAgencyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Lines of Credit and Long Term Debt - Long Term Debt - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Mar. 15, 2013
Debt Instrument [Line Items]
Long term debt	$ 8,506,000	$ 8,528,000
Notes payable to banks \| Trans Ova Genetics, LC \| American State Bank
Debt Instrument [Line Items]
Long term debt	5,517,000
Debt instrument, periodic payment	$ 39,000
Debt instrument, interest rate, stated percentage	3.95%
Notes payable
Debt Instrument [Line Items]
Long term debt	$ 6,363,000	6,477,000
Notes payable \| Trans Ova Genetics, LC \| Iowa Economic Development Authority
Debt Instrument [Line Items]
Long term debt	366,000
Debt instrument, periodic principal payment	183,000
Notes payable \| Exemplar Genetics, LLC
Debt Instrument [Line Items]
Long term debt	480,000
Notes payable \| Exemplar Genetics, LLC \| Minimum
Debt Instrument [Line Items]
Debt instrument, periodic payment	$ 1,000
Debt instrument, interest rate, stated percentage	0.00%
Notes payable \| Exemplar Genetics, LLC \| Maximum
Debt Instrument [Line Items]
Debt instrument, periodic payment	$ 4,000
Debt instrument, interest rate, stated percentage	3.00%
Royalty-based financing
Debt Instrument [Line Items]
Long term debt	$ 1,945,000	$ 1,807,000
Royalty-based financing \| AquaBounty Technologies, Inc. \| Atlantic Canada Opportunities Agency
Debt Instrument [Line Items]
Long term debt	1,945,000
Amount available under the grant for research and development	$ 2,215,000
Claims period	5 years
Royalty on products	10.00%
Amount claimed			$ 1,952,000
Long term debt			1,107,000
Accreted difference between face value of amount drawn and acquisition date fair value			$ 845,000