Common Stock Purchase Option, Number of Shares Authorized

No definition available.

Name:	ino_CommonStockPurchaseOptionNumberofSharesAuthorized
Namespace Prefix:	ino_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Common Stock Purchase Option, Term

+ References

No definition available.

+ Details

Name:	ino_CommonStockPurchaseOptionTerm
Namespace Prefix:	ino_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

+ Details

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

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=ino_PublicOfferingNotIPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details) - USD ($)		1 Months Ended	6 Months Ended		13 Months Ended
Subsequent Events (Details) - USD ($)	Jul. 25, 2017	Aug. 08, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017
Subsequent Event [Line Items]
Proceeds from sale of common stock			$ 24,060,196	$ 1,301,435	$ 30,400,000
Subsequent Event [Member] \| Sales agreement [Member]
Subsequent Event [Line Items]
Number of common shares sold		19,681
Common shares sold (in dollars per share)		$ 8.07
Proceeds from sale of common stock		$ 156,000
Subsequent Event [Member] \| Common Stock [Member] \| Public offering [Member]
Subsequent Event [Line Items]
Number of common shares sold	12,500,000
Common shares sold (in dollars per share)	$ 6.00
Proceeds from sale of common stock	$ 70,200,000
Subsequent Event [Member] \| Common Stock [Member] \| Over-allotment option [Member]
Subsequent Event [Line Items]
Common stock purchase option, term	30 days
Common stock purchase option, shares authorized	1,875,000