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Share-Based Compensation (Details Textual) (USD $) | 1 Months Ended | 12 Months Ended |  |  |  |  |  | 12 Months Ended | 1 Months Ended |  | 1 Months Ended |  |  |  |  |  |  | 1 Months Ended |  | 1 Months Ended |  |  |  | 1 Months Ended |  | 1 Months Ended |  |  | 1 Months Ended | 12 Months Ended
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Sep. 30, 2012 | May 31, 2010 | Mar. 31, 2010 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Sep. 04, 2012 | Jun. 23, 2011 | May 19, 2010 | Feb. 02, 2010 | Nov. 16, 2009 | Dec. 31, 2012 Restricted Stock [Member] | Jun. 30, 2012 Stock Compensation Plan [Member] | May 31, 2011 Stock Compensation Plan [Member] | Dec. 31, 2012 Stock Compensation Plan [Member] | Feb. 28, 2010 Stock Options [Member] | Jun. 30, 2011 Company's Director [Member] | Jun. 23, 2011 Company's Director [Member] | May 19, 2010 Company's Director [Member] | Jun. 23, 2011 Executive Officer [Member] | May 19, 2010 Executive Officer [Member] | Jun. 23, 2011 Management [Member] | May 19, 2010 Management [Member] | Sep. 30, 2012 Chief Operating Officer [Member] | Feb. 28, 2010 Chief Operating Officer [Member] | Feb. 02, 2010 Chief Operating Officer [Member] | Aug. 31, 2012 Chief Operating Officer [Member] Restricted Stock [Member] | May 31, 2011 Chief Operating Officer [Member] Restricted Stock [Member] | Feb. 28, 2010 Chief Operating Officer [Member] Restricted Stock [Member] | Dec. 31, 2012 Chief Operating Officer [Member] Restricted Stock [Member] | Aug. 23, 2012 Chief Operating Officer [Member] Restricted Stock [Member] | Feb. 02, 2010 Chief Operating Officer [Member] Restricted Stock [Member] | Apr. 30, 2000 Stock Grantor Trust [Member] | Apr. 03, 2000 Stock Grantor Trust [Member] | Jun. 30, 2011 Executive Officers and Management [Member] | May 31, 2010 Director Executive Officers and Management [Member] | May 19, 2011 Director Executive Officers and Management [Member] | May 19, 2010 Director Executive Officers and Management [Member] | Sep. 30, 2012 Vice President and Chief Operating Officer [Member] | Dec. 31, 2012 Maximum [Member] Stock Options [Member] | Dec. 31, 2012 Minimum [Member] Stock Options [Member]
Share Based Compensation (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company's common stock exercise price |  | 150.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price for the previous consecutive trading days |  | 20 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award options to be vested on grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award options to be vested on expiration of year one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award options to be vested on expiration of year two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expiration date of option | Sep. 04, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 23, 2016 |  |  |  |  |  |  |  | Feb. 02, 2015 |  |  |  |  |  |  |  |  |  | Jun. 23, 2018 | May 19, 2015 |  |  |  |  |
Options Vested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |
Option expiration two year from grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option expiration one year from grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock awards, shares |  |  |  |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Company granted options to purchase of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 350,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price of performance-based restricted common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.61 | $ 3.37 | $ 5.84 |  |  |  |  |  |  |  |  |
Shares vest on each of the first anniversary of the grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares vest on each of the second anniversary of the grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares vest on each of the third anniversary of the grant date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of restricted Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 650,000 |  | 300,000 |  |  |  |  |  |  |  |  |  |  |  |
Percentage on first anniversary of issue date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 38.50% |  | 33.00% |  |  |  |  |  |  |  |  |  |  |  |
Percentage on second anniversary of issue date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 77.00% |  | 66.00% |  |  |  |  |  |  |  |  |  |  |  |
Shares reserved for issuance and awards under the Incentive Plan |  |  |  |  |  |  |  |  |  |  | 1,800,000 |  |  |  | 1,850,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage on third anniversary of issue date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award portion of options to be vested on expiration of year one of Options To Be Vested On Expiration of Year One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.33 |  |  |  |  |  |
Non-qualified stock option awards expire years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years | 5 years
Shares of company common stock for funding |  |  |  | 41,889,000 | 41,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,900,000 |  |  |  |  |  |  |
Increase in the shares reserved for grant |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 | 2,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award portion of options to be vested on expiration of year two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.33 |  |  |  |  |  |
Vest and non-vested shares over service period |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  | 2 years |  |  |  |  |  |  |  | 2 years |  |  | 3 years |  | 3 years |  |  |  |  |  |  |  |  |  |  | 3 years | 2 years
Amount delivered by SGT in exchange |  |  |  | $ 207,000 | $ 5,000 | $ 14,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 29,000 |  |  |  |  |  |  |  |
Option Granted |  |  |  | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 |  |
Option Granted |  |  |  |  |  |  |  | 1,495,000 | 1,315,000 |  |  |  |  |  |  |  |  | 225,000 | 225,000 | 675,000 | 775,000 | 595,000 | 315,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award portion of options to be vested on expiration of six months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.33 |  |  |  |  |  |
Promissory notes received for shares issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,300,000 |  |  |  |  |  |  |  |
Number of Common Stock Held under Stock Grantor Trust |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Based Compensation (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock reserved for issuance and awards under the Incentive Plan |  |  |  |  |  |  |  |  |  |  | 1,800,000 |  |  |  | 1,850,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option Exercise Price |  |  |  |  |  |  | $ 3.51 | $ 4.70 | $ 4.87 | $ 5.84 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph d(1) -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. + Details
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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4, 5 -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 AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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- Definition Share based compensation arrangement by share based payment award cumulative percentage of vesting on expiration of year one. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award cumulative percentage of vesting on expiration of year three. + References No definition available. + Details
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