Stockholders' Equity (Narrative) (Details) (USD $)
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9 Months Ended | 3 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | |||||||||||||||||||||||
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Sep. 30, 2013
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Sep. 30, 2012
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Dec. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2013
Approximations [Member]
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Sep. 30, 2012
Approximations [Member]
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Sep. 30, 2013
Approximations [Member]
|
Sep. 30, 2012
Approximations [Member]
|
Sep. 30, 2013
Chief Executive Officer [Member]
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Sep. 30, 2013
Issuance of 1,136,748 8-10 year options [Member]
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Sep. 30, 2013
Issuance of 229,558 8-10 year options [Member]
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Sep. 30, 2013
Issuance of 271,869 Non-Qualified 10 year options [Member]
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Sep. 30, 2013
Minimum [Member]
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Sep. 30, 2013
Minimum [Member]
Chief Executive Officer [Member]
|
Sep. 30, 2013
Minimum [Member]
Directors, Officers and Employees [Member]
|
Sep. 30, 2013
Minimum [Member]
Issuance of 1,136,748 8-10 year options [Member]
|
Sep. 30, 2013
Minimum [Member]
Issuance of 229,558 8-10 year options [Member]
|
Sep. 30, 2013
Maximum [Member]
|
Sep. 30, 2013
Maximum [Member]
Chief Executive Officer [Member]
|
Sep. 30, 2013
Maximum [Member]
Directors, Officers and Employees [Member]
|
Sep. 30, 2013
Maximum [Member]
Issuance of 1,136,748 8-10 year options [Member]
|
Sep. 30, 2013
Maximum [Member]
Issuance of 229,558 8-10 year options [Member]
|
Sep. 30, 2013
Stock Compensation Plan [Member]
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Sep. 30, 2013
Maximum restricted shares granted [Member]
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Sep. 30, 2013
Maximum restricted shares granted to one person [Member]
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Sep. 30, 2013
Restricted Stock [Member]
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Dec. 31, 2012
Restricted Stock [Member]
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Sep. 30, 2013
Maximum number of shares in respect to stock options [Member]
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Common Stock, Shares Authorized | 500,000,000 | 500,000,000 | ||||||||||||||||||||||||||
Common Stock, Shares, Outstanding | 12,556,400 | 12,526,240 | ||||||||||||||||||||||||||
Common stock reserved for issuance | 0 | 2,264 | ||||||||||||||||||||||||||
Class of Warrant or Right, Outstanding | 1,034,996 | |||||||||||||||||||||||||||
Number of options outstanding | 1,630,925 | 1,639,842 | 1,674,065 | |||||||||||||||||||||||||
Unvested Shares | 15,136 | 43,032 | ||||||||||||||||||||||||||
Total stock and stock equivalents outstanding | 15,237,457 | |||||||||||||||||||||||||||
Common Stock, Capital Shares Reserved for Future Issuance | 2,500,000 | 1,250,000 | 166,667 | 266,667 | ||||||||||||||||||||||||
Number of options vested and expected to vest outstanding | 1,594,126 | 1,523,536 | ||||||||||||||||||||||||||
Stock option expense | $ 45,000 | $ 145,000 | $ 190,000 | $ 560,000 | ||||||||||||||||||||||||
Non-qualified stock options | 665,088 | 1,129,498 | 229,558 | 271,869 | ||||||||||||||||||||||||
Contractural lives | 10 years | 2 years 2 months 12 days | 2 years 9 months 18 days | 8 years | 8 years | 7 years 6 months | 7 years 6 months | 10 years | 10 years | |||||||||||||||||||
Lower Limit | $ 5.42 | $ 5.70 | $ 4.50 | |||||||||||||||||||||||||
Upper Limit | $ 23.85 | $ 19.20 | $ 14.40 | |||||||||||||||||||||||||
Aggregate intrinsic value | 0 | 0 | ||||||||||||||||||||||||||
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Intrinsic Value | $ 1.79 | $ 1.41 | ||||||||||||||||||||||||||
Unrecognized compensation costs | 40,000 | 120,000 | ||||||||||||||||||||||||||
Expected compensation cost | 40,000 | 40,000 | ||||||||||||||||||||||||||
Weighted average recognition period | 0 years 6 months | |||||||||||||||||||||||||||
Restricted stock grants estimated forfeiture amount | 1.40% | 2.90% | ||||||||||||||||||||||||||
Stock based compensation | 273,558 | 831,063 | 60,000 | 200,000 | 270,000 | 830,000 | ||||||||||||||||||||||
Common Stock issued | 12,556,400 | 12,526,240 | ||||||||||||||||||||||||||
Proceeds from Issuance of Common Stock | $ 0 | $ 1,733 |