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Long Term Retention Plan - Long Term Retention Plans Accrued Compensation Expense (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	$ 1,165,305	$ 2,586,792	$ 1,931,082	$ 4,297,543
Long Term Retention Plan 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	(88,128)	709,758	(439,050)	1,117,678
Long Term Retention Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	(7,680)	624,140	(190,575)	1,017,936
Long Term Retention Plan 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	43,895	595,513	(57,217)	1,006,713
Long Term Retention Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	90,931	657,381	89,984	1,155,216
Long Term Retention Plan 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	435,358		1,039,219
Long Term Retention Plan 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long term retention plan	$ 690,929		$ 1,488,721

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ 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 (h)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Details

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