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Stock-Based Compensation (Details Textual) (USD $) | 12 Months Ended | 1 Months Ended |  | 12 Months Ended | 0 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2013 Segment Employees Plan | Dec. 31, 2012 | Dec. 31, 2011 | Mar. 31, 2011 Mr. Mats Dahlin from Davisa Ltd. [Member] | Aug. 12, 2013 Mr. Mats Dahlin from Davisa Ltd. [Member] | Dec. 31, 2011 Minimum [Member] | Dec. 31, 2011 Maximum [Member] | Dec. 31, 2013 Stock Options [Member] Employees | Dec. 31, 2012 Stock Options [Member] | Dec. 31, 2011 Stock Options [Member] | Apr. 04, 2013 Warrant [Member] | Dec. 31, 2010 Warrant [Member] | Dec. 31, 2012 Warrant [Member] | Dec. 31, 2011 Warrant [Member] | Dec. 03, 2010 Warrant [Member] | Dec. 31, 2011 Warrant [Member] Legal Advisor [Member] | Dec. 31, 2011 Warrant [Member] Employee [Member] | Dec. 31, 2011 Warrant [Member] Engineering Consultant [Member] | Dec. 31, 2013 1996 Stock Option Plan [Member] | Dec. 31, 2013 1996 Stock Option Plan [Member] Minimum [Member] | Dec. 31, 2013 1996 Stock Option Plan [Member] Maximum [Member] | Dec. 31, 2013 1998 Non-Officer Stock Option Plan [Member] | Dec. 31, 2013 2006 Equity Incentive Plan [Member] | Dec. 31, 2013 2006 Equity Incentive Plan [Member] Minimum [Member] | Dec. 31, 2013 2006 Equity Incentive Plan [Member] Maximum [Member] | Dec. 31, 2013 2001 Non-Employee Director Stock Option Plan [Member] | Dec. 31, 2013 2001 Non-Employee Director Stock Option Plan [Member] Minimum [Member] | Dec. 31, 2013 2001 Non-Employee Director Stock Option Plan [Member] Maximum [Member] | Dec. 31, 2013 1998 Non Officer Stock Option Plan and Equity Incentive Plan [Member] Minimum [Member] | Dec. 31, 2013 1998 Non Officer Stock Option Plan and Equity Incentive Plan [Member] Maximum [Member] | Dec. 31, 2011 Five Year Stock Purchase Warrants [Member] | Dec. 31, 2011 Five Year Stock Purchase Warrants [Member] Warrant [Member] | Dec. 31, 2013 Three Year Stock Purchase Warrants [Member] | Dec. 31, 2012 Three Year Stock Purchase Warrants [Member] | Dec. 31, 2011 Three Year Stock Purchase Warrants [Member] | Dec. 31, 2011 Three Year Stock Purchase Warrants One [Member] | Dec. 31, 2011 Three Year Stock Purchase Warrants Two [Member]
Stock-Based Compensation (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options outstanding, vested and expected to vest, aggregate intrinsic value | $ 1,100,000 |  |  |  |  |  |  | $ 2,906,724 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options outstanding, vested and expected to vest, outstanding, number | 241,361 |  |  |  |  |  |  | 1,600,583 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock option vesting period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year | 4 years |  |  | 1 year | 4 years |  | 1 year | 4 years | 1 year | 4 years |  |  |  |  | 24 months |  |
Stock option expiration date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2008 June | 2006 January |  |  | 2011 March |  |  |  |  |  |  |  |  |  |  |
Stock option expiration period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  | 10 years | 10 years |  |  |  | 5 years | 7 years |  |  |  |  |  |  |  |  |
Compensation expense related to the vesting of stock options |  |  |  |  |  |  |  | 2,500,000 | 3,400,000 | 87,000 |  |  | 91,000 | 99,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Plan termination, effective date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Jan. 17, 2006 |  |  | Jun. 15, 2008 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant issued in period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80,000 | 422,830 |  |  | 20,000 | 20,000 | 20,000
Fair value of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000 |  |
Common stock issuable upon exercise of warrants | 1,815,368 | 361,000 |  |  | 215,724 |  |  |  |  |  |  | 120,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.63 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.50 | $ 3.13 |  |  | $ 2.00 | $ 4.05 | $ 3.90
Fair value of warrants granted included in product research and development expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 193,000 | 37,000 | 73,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,000 | 38,000 | 11,000 |  |
Expected life (years) |  |  |  |  |  | 29 days | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares to be purchased |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of vested warrants granted to employees |  |  |  |  |  |  |  |  |  |  |  | 198,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of equity incentive plans | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of non-employee director stock option plan | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted to purchase of common stock to consultants |  | 169,000 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted to purchase of common stock to employee | 145,000 | 1,175,000 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted to purchase of common stock to members of Board |  | 360,000 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vesting period of options following grant date |  |  | 24 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued upon exercise of common stock options | 1,060,000 |  |  |  |  |  |  | 502,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation options granted to purchase of common stock to employee fair value | 748,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of employees | 3 |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recognition period of unamortized expense related to stock options and warrants | 2 years 10 months 24 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options vesting period description | The options have a 7-year life and 1/3 of the options are vested on the one year anniversary date of grant with the remaining to vest monthly over the remaining 24-months. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award equity instruments options grants in period grant date fair value |  |  |  |  |  |  |  |  |  |  | 166,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price one |  | $ 3.13 |  |  |  |  |  |  |  |  | $ 1.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from exercise of warrants | $ 714,000 | $ 223,000 | $ 515,000 | $ 93,200 |  |  |  |  |  |  | $ 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercised to purchase common stock |  |  |  |  |  |  |  |  |  |  | 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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