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Restructuring Charges and Asset Disposals - Restructuring Reserves (Detail) (USD $)	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 29, 2012	Mar. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning balance					$ 253,219
Expenses	444,285	495,207	53,510	8,165	447,968	503,372
Cash payments					(567,988)
Non-cash charges					(78,445)
Ending balance			54,754		54,754
Lease Liability Costs 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance					172,999
Expenses					(120,703)
Cash payments
Non-cash charges					(52,296)
Ending balance
Lease Liability Costs 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance					80,220
Expenses
Cash payments					(22,112)
Non-cash charges					(26,149)
Ending balance			31,959		31,959
Severance and Benefit Costs 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance
Expenses					568,671
Cash payments					(545,876)
Non-cash charges
Ending balance			$ 22,795		$ 22,795

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

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X

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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-Section S99

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Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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