v2.4.0.8

Organization (Details) (USD $) | 0 Months Ended | 6 Months Ended |  |  |  | 0 Months Ended |  | 0 Months Ended | 6 Months Ended |  |  |  |
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Jul. 03, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | May 15, 2012 | Apr. 04, 2014 Shelf Registration [Member] Common Stock [Member] | Jul. 03, 2013 Shelf Registration [Member] Common Stock [Member] | Apr. 04, 2014 Shelf Registration [Member] Subsequent Event [Member] | Apr. 04, 2014 Shelf Registration [Member] | Jul. 03, 2013 Shelf Registration [Member] | Jun. 30, 2014 Shelf Registration [Member] | Jul. 03, 2013 Common Stock [Member] | Jun. 30, 2014 Line Of Credit With FGI [Member] | Jun. 30, 2014 8% Subordinated Convertible Shareholder Notes Due 2016 [Member] | May 06, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member] | Apr. 11, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]
Organization (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained Earnings (Accumulated Deficit) |  | $ (186,744,000) |  | $ (181,719,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,500,000 |  |  |
Line of Credit Facility, Amount Outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,400,000 |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,100,000 |  |  |
Shelf Registration Authorized Amount |  |  |  |  |  | 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Shelf Registartion Public Float Threshold |  |  |  |  |  | 75,000,000 |  |  |  |  |  |  |  |  |  |  |
Shelf Registration Units Sold | 1,730,000 |  |  |  |  |  |  |  | 2,030,000 |  |  |  |  |  |  |  |
Shelf Registration Unit Price | 1.25 |  |  |  |  |  |  |  |  | 3.40 |  |  |  |  |  |  |
Shelf Registration Units Sold Share Component Per Unit |  |  |  |  |  |  | 1 |  |  |  |  |  | 1 |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right |  |  |  |  |  |  | 1 | 1 |  |  | 1.25 |  |  |  |  |  |
Proceeds From Issuance Of Common Stock And Warrants |  |  |  |  |  |  | 6,100,000 |  |  |  | 1,700,000 |  |  |  |  |  |
Warrants Exercised During the Period |  |  |  |  |  |  |  |  |  |  |  | 800,000 |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  |  | $ 4.20 |  |  |  |  | $ 1.25 |  |  |  |  |
Proceeds from Warrant Exercises |  | 1,000,000 |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8.00% | 8.00% | 8.00%
Cash |  | $ 8,558,000 | $ 3,164,000 | $ 3,909,000 | $ 6,878,000 |  |  |  |  |  |  |  |  |  |  |  |

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