Long-Term Debt (Details Textual) (USD $)	3 Months Ended
Mar. 31, 2013	Dec. 31, 2012
Long-Term Debt (Textual) [Abstract]
Long-term debt	$ 115,750,000	$ 116,750,000
Long Term Debt (Additional Textual) [Abstract]
Mandatory prepayments of consolidated excess cash flow due period	120 days
First lien agreement condition description	The first lien credit agreement requires mandatory prepayments equal to 50% of consolidated excess cash flow, as defined in the first lien credit agreement, when the Company's consolidated total debt is equal to or greater than three times its consolidated operating cash flow, as defined in the first lien credit agreement. The mandatory prepayments decrease to 25% of excess cash flow when the Company's consolidated total debt is less than three times its consolidated operating cash flow. Mandatory prepayments of consolidated excess cash flow are due 120 days after year end. The credit agreement also requires mandatory prepayments for defined amounts from net proceeds of asset sales, net insurance proceeds, and net proceeds of debt issuances
First lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Revolving credit loan and term loan carried interest	5.15%	5.18%
Mandatory prepayments of excess cash flow	50.00%
Mandatory prepayments decrease of excess cash flow	25.00%
Second lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Revolving credit loan and term loan carried interest	11.25%	11.25%
Must not be less than [Member] \| First Mortgage [Member]
Long-Term Debt (Textual) [Abstract]
Interest Coverage Ratio	2.0
Revolving credit loan [Member] \| First lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Revolving credit loan maximum commitment	20,000,000
Remaining commitments under the revolving credit loan facility	15,000,000
Revolving credit loan [Member] \| Letters of credit [Member] \| First lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Sub-limit for letters of credit under revolving credit loan	5,000,000
Term loan [Member] \| First lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Long-term debt	85,750,000	86,750,000
Term loan [Member] \| Second lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Long-term debt	$ 25,000,000	$ 25,000,000
Revolving credit loan and term loan [Member] \| First lien facility [Member]
Long-Term Debt (Textual) [Abstract]
Revolving credit facility and term loan maturity date	Aug. 09, 2017
March 31, 2013 [Member] \| Must not exceed [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	5.25
April 1, 2013 through December 31, 2013 [Member] \| Maximum [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	5.0
January 1, 2014 through December 31, 2014 [Member] \| Maximum [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	4.5
January 1, 2015 through December 31, 2015 [Member] \| Maximum [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	4.0
January 1, 2016 through December 31, 2016 [Member] \| Maximum [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	3.5
January 1, 2017 through maturity [Member] \| Maximum [Member] \| First Mortgage [Member] \| First lien facility [Member] \| Forecast [Member]
Long-Term Debt (Textual) [Abstract]
Long-term Debt Covenants Aggregate Leverage Ratio	3.0

Consolidated debt ratio.

No definition available.

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- Definition

First lien mandatory prepayments.

+ References

No definition available.

+ Details

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- Definition

Interest coverage ratio.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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Period Type:	instant

- Definition

Letter of credit sub limit.

+ References

No definition available.

+ Details

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

- Details

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- Definition

Mandatory prepayments decrease of excess cash flow.

+ References

No definition available.

+ Details

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- Definition

Mandatory prepayments of consolidated excess cash flow due period.

+ References

No definition available.

+ Details

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- Definition

Mandatory prepayments of excess cash flow.

+ References

No definition available.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, 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

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(a)(2))

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

Reference 3: 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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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Balance Type:	credit
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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ 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 210.5-02.19(b),22(b))

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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Balance Type:	credit
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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 5: 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

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- 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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