Price per share at which common stock redeemed as of reporting date.

No definition available.

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- Definition

Price per share of debt instrument not redeemed in trust account as of reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	gdef_
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- Definition

Number of common stock shares redeemed as of reporting date.

+ References

No definition available.

+ Details

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- Definition

Value of common stock shares redeemed as of reporting date.

+ References

No definition available.

+ Details

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- Definition

The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate within one year of the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(b))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ 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(a)(3))

-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

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Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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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

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- Details

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- Details

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SUBSEQUENT EVENTS (Details Textual) - USD ($)	1 Months Ended	6 Months Ended
SUBSEQUENT EVENTS (Details Textual) - USD ($)	Jul. 17, 2015	Jun. 30, 2015	Jul. 24, 2015
Subsequent Event [Line Items]
Debt Instrument, Maturity Date		Jul. 24, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Maturity Date		Jul. 24, 2015
Redemption Of Common Stock Shares	876,072
Common Stock Redemption Price Per Share	$ 10.55
Redemption Of Common Stock Value	$ 9,242,560
Subsequent Event [Member] \| Trust Equities [Member]
Subsequent Event [Line Items]
Share Price			$ 10.61
Subsequent Event [Member] \| Deposits [Member]
Subsequent Event [Line Items]
Assets Held-in-trust, Current			$ 63,913,876
Subsequent Event [Member] \| Commercial Paper [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount	$ 361,436
Debt Instrument Not Redemeed In Trust Account Price Per Share	$ 0.06
Debt Instrument, Payment Terms	The note will be repaid on the earlier of (1) October 24, 2015, or (2) immediately following consummation of the Companys initial Business Combination.
Subsequent Event [Member] \| Convertible Notes Payable [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount	$ 361,436
Debt Instrument Not Redemeed In Trust Account Price Per Share	$ 0.06