Inventories (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Inventories [Abstract]
Jewelry	$ 8,107,393	$ 6,979,144
Scrap	1,464,730	2,354,338
Bullion	2,584,710	1,558,414
Rare coins	1,391,180	1,040,833
Total	$ 13,548,013	$ 11,932,729

Carrying amount (lower of cost or market) as of the balance sheet date of bullion held in inventory.

No definition available.

Name:	dgse_Bullion
Namespace Prefix:	dgse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount (lower of cost or market) as of the balance sheet date of jewelry held in inventory.

+ References

No definition available.

+ Details

Name:	dgse_Jewelry
Namespace Prefix:	dgse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount (lower of cost or market) as of the balance sheet date of rare coins and collectibles held in inventory.

+ References

No definition available.

+ Details

Name:	dgse_RareCoinsAndCollectibles
Namespace Prefix:	dgse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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

- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ 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 210.5-02.6(a))

-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 330

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6386567&loc=d3e3927-108312

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

+ Details

Name:	us-gaap_InventoryNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Gross amount of residue from manufacturing or production process that has recovery value.

+ References

+ Details

Name:	us-gaap_OtherInventoryScrap
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant