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Critical Accounting Policies and Estimates (Details Textual) - USD ($)	1 Months Ended	9 Months Ended
	Sep. 22, 2017	Sep. 30, 2017	Sep. 30, 2016
Accounting Policies [Abstract]
Increase (Decrease) in Notes Receivable, Current		$ 675,000	$ 0
Notes Receivable, Monthly Payment of Principal and Interest	$ 4,992.89
Notes Receivable, Amortization Period	15 years
Receivable with Imputed Interest, Effective Yield (Interest Rate)	4.00%
Receivable with Imputed Interest, Due Date	Oct. 15, 2024

X

- Definition

Amortization period for the recovery of notes receivable.

+ References

No definition available.

+ Details

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Namespace Prefix:	dgse_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of the monthly payments received including both interest and principal payments.

+ References

No definition available.

+ Details

Name:	dgse_NotesReceivablemonthlyPaymentOfPrincipalAndInterest
Namespace Prefix:	dgse_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

The increase (decrease) during the reporting period of amounts due within one year (or one business cycle) from note holders for outstanding loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Date the receivable or note with imputed interest is due, in CCYY-MM-DD format.

+ References

Reference 1: 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=64930785&loc=d3e28551-108399

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

X

- Definition

Yield on the receivable, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the receivable, the time period between payments, and the time until maturity [full receipt] of the receivable.

+ References

Reference 1: 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=64930785&loc=d3e28551-108399

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