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Stockholders' Equity (Details) (USD $)
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3 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2014
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Mar. 31, 2013
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Apr. 04, 2014
Subsequent Event [Member]
Common Stock [Member]
Shelf Registration [Member]
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Apr. 04, 2014
Subsequent Event [Member]
Common Stock [Member]
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Apr. 04, 2014
Subsequent Event [Member]
Shelf Registration [Member]
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Apr. 04, 2014
Subsequent Event [Member]
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Oct. 07, 2011
Purchase Agreement With LPC [Member]
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Mar. 31, 2014
Warrant [Member]
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Jul. 03, 2013
Common Stock [Member]
Shelf Registration [Member]
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Mar. 31, 2014
Common Stock [Member]
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Jul. 03, 2013
Common Stock [Member]
|
Jul. 03, 2013
Shelf Registration [Member]
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Mar. 31, 2014
Shelf Registration [Member]
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Jul. 03, 2013
Underwriting Agreement [Member]
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| Stockholders' Equity (Details) [Line Items] | ||||||||||||||
| Adjustments to Additional Paid in Capital, Other | $ 3,600,000 | $ 3,500,000 | ||||||||||||
| Proceeds from Warrant Exercises | 1,000,000 | 1,000,000 | ||||||||||||
| Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) | 812,000 | 800,000 | ||||||||||||
| Fair Value Adjustment of Warrants | 2,051,000 | (3,000) | 2,500,000 | |||||||||||
| Shelf Registration Date of Filing | Dec. 31, 2012 | |||||||||||||
| Shelf Registration Effective Date | May 21, 2012 | |||||||||||||
| Shelf Registration Authorized Amount | 50,000,000 | 50,000,000 | ||||||||||||
| Shelf Registartion Public Float Threshold | 75,000,000 | 75,000,000 | ||||||||||||
| Shelf Registration Units Sold (in Shares) | 2,030,000 | 1,730,000 | 1,730,000 | |||||||||||
| Shelf Registration Units Sold Share Component Per Unit (in Shares) | 1 | 1 | 1 | |||||||||||
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share) | $ 4.20 | $ 1.25 | $ 1.25 | |||||||||||
| Gross Proceed from Issuance of Common Stock | 2,200,000 | |||||||||||||
| Net Proceeds from Issuance of Common Stock | 1,700,000 | |||||||||||||
| Placement Agent Agreement, Registered Direct Offering, Number of Shares Authorized (in Shares) | 2,030,000 | |||||||||||||
| Placement Agent Agreement Registered Direct Offering Net Proceeds | 6,100,000 | |||||||||||||
| Stock Purchase Agreement Authorized Amount | $ 10,000,000 | |||||||||||||
| Stock Purchase Agreement Period in Force | 30 months | |||||||||||||