Long-term debt, current and non current, textuals 2 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010
[DnbNorBankAsa2010DebtInstrumentMember]
Debt Instrument Line Items
Debt Instrument Issuance Date	Jul. 07, 2010
Debt Instrument Face Amount	$ 40,000
Debt Instrument Description Of Variable Rate Basis	Libor plus a margin of 2.4%
Loan Margin Percentage	2.40%
Debt Instrument Commitment Fees Percentage	0.96%
[DnbNorBankAsa2010DebtInstrumentMember] \| [TrancheMember]
Debt Instrument Line Items
Debt Instrument Face Amount	20,000
Debt Instrument Number Of Periodic Payment	24
Debt Instrument Frequency Of Periodic Payment	24 quarterly installments
Debt Instrument Periodic Payment Principal	330
Final Debt Principal Payment	12,080
[DnbNorBankAsa2010DebtInstrumentMember] \| [TrancheBMember]
Debt Instrument Line Items
Debt Instrument Face Amount	20,000
Debt Instrument Number Of Periodic Payment	24
Debt Instrument Frequency Of Periodic Payment	24 quarterly installments
Debt Instrument Periodic Payment Principal	330
Final Debt Principal Payment	12,080
[DnbNorBankAsa2011DebtInstrumentMember]
Debt Instrument Line Items
Debt Instrument Issuance Date	May 04, 2011
Debt Instrument Face Amount	85,000
Debt Instrument Description Of Variable Rate Basis	Libor plus a margin of 2.6%
Loan Margin Percentage	2.60%
[DnbNorBankAsa2011DebtInstrumentMember] \| [TrancheMember]
Debt Instrument Line Items
Debt Instrument Face Amount	65,000
Debt Instrument Number Of Periodic Payment	24
Debt Instrument Frequency Of Periodic Payment	24 quarterly installments
Debt Instrument Periodic Payment Principal	1,140
Final Debt Principal Payment	37,640
[DnbNorBankAsa2011DebtInstrumentMember] \| [TrancheBMember]
Debt Instrument Line Items
Debt Instrument Face Amount	20,000
Debt Instrument Number Of Periodic Payment	8
Debt Instrument Frequency Of Periodic Payment	8 quarterly installments
Debt Instrument Periodic Payment Principal	2,500
Percentage Of Borrowings To Market Value	35.00%
[DnbNorBankAsaDebtInstrumentMember]
Debt Instrument Line Items
Longterm Debt Weighted Average Interest Rate	2.77%	2.82%
Debt Instrument Priority	first preferred ship mortgage on the vessels
Debt Instrument Covenant Description	The loans also included restrictions as to changes in management, ownership, additional indebtedness, minimum hull cover, consolidated leverage ratio and minimum liquidity. Furthermore, the Company was not permitted to pay any dividends that would result to an event of default.
Extinguishment Of Debt Amount	65,000
Write Off Of Deferred Debt Issuance Cost	$ 642

The percentage for commitment fees in a loan agreement.

No definition available.

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Namespace Prefix:	dcix_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of periodic payments.

+ References

No definition available.

+ Details

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Namespace Prefix:	dcix_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the last required periodic payment applied to principal

+ References

No definition available.

+ Details

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Namespace Prefix:	dcix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ 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=6451184&loc=d3e28551-108399

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-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: 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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-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

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

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Details

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Balance Type:	na
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- Definition

Amount of the required periodic payments applied to principal.

+ 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)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

- Definition

Description of the debt instrument's priority, or seniority, for repayment in relation to other obligations of the entity in the event of liquidation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (f)

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-Publisher SEC

-Name Regulation S-X (SX)

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-Paragraph 22

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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-Name Accounting Standards Codification

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(4))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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