v2.4.0.8

Organization (Details) (USD $) | 3 Months Ended |  |  | 0 Months Ended |  | 0 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Apr. 04, 2014 Subsequent Event [Member] Common Stock [Member] Shelf Registration [Member] | Apr. 04, 2014 Subsequent Event [Member] Shelf Registration [Member] | Jul. 03, 2013 Common Stock [Member] Shelf Registration [Member] | Jul. 03, 2013 Common Stock [Member] | Jul. 03, 2013 Shelf Registration [Member] | Mar. 31, 2014 Shelf Registration [Member] | Mar. 31, 2014 Line Of Credit With FGI [Member] | Mar. 31, 2014 8% Subordinated Convertible Notes Due 2016 [Member] | May 11, 2011 8% Subordinated Convertible Notes Due 2016 [Member]
Organization (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Retained Earnings (Accumulated Deficit) | $ (185,555,000) |  | $ (181,719,000) |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  | 7,500,000 |  |
Line of Credit Facility, Amount Outstanding |  |  |  |  |  |  |  |  |  |  | 2,700,000 |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  |  |  |  |  |  |  | 4,800,000 |  |
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 Unit Price (in Dollars per share) |  |  |  |  |  | $ 3.40 |  |  | $ 1.25 |  |  |  |
Shelf Registration Units Sold Share Component Per Unit (in Shares) |  |  |  |  | 1 |  | 1 | 1 |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in Shares) |  |  |  |  | 1 |  | 1 |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Share) |  |  |  |  | $ 4.20 |  |  |  | $ 1.25 | $ 1.25 |  |  |
Proceeds from Issuance of Common Stock and Warrants |  |  |  |  | 6,100,000 |  |  |  | 1,700,000 |  |  |  |
Warrants Exercised During the Period (in Shares) |  |  |  |  |  |  |  |  |  | 800,000 |  |  |
Proceeds from Warrant Exercises | 1,000,000 |  |  |  |  |  |  |  |  | 1,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  | 8.00% | 8.00%
Cash | $ 3,597,000 | $ 4,583,000 | $ 3,909,000 | $ 6,878,000 |  |  |  |  |  |  |  |  |

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