Stockholders' Equity (Narrative) (Details) (USD $)
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9 Months Ended | 12 Months Ended | 3 Months Ended | 8 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | ||||||||||||||||||
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Sep. 30, 2012
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Sep. 30, 2011
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Dec. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2012
Approximations [Member]
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Sep. 30, 2011
Approximations [Member]
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Sep. 01, 2012
Approximations [Member]
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Sep. 30, 2012
Approximations [Member]
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Sep. 30, 2011
Approximations [Member]
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Sep. 30, 2012
Chief Executive Officer [Member]
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Sep. 30, 2012
Issuance of 273,536 5-10 year options [Member]
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Sep. 30, 2012
Issuance of 1,136,748 8-10 year options [Member]
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Sep. 30, 2012
Issuance of 229,558 8-10 year options [Member]
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Sep. 30, 2012
Minimum [Member]
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Sep. 30, 2012
Minimum [Member]
Chief Executive Officer [Member]
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Sep. 30, 2012
Minimum [Member]
Directors, Officers and Employees [Member]
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Sep. 30, 2012
Maximum [Member]
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Sep. 30, 2012
Maximum [Member]
Chief Executive Officer [Member]
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Sep. 30, 2012
Maximum [Member]
Directors, Officers and Employees [Member]
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Sep. 30, 2012
Stock Compensation Plan [Member]
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Sep. 30, 2012
Maximum restricted shares granted [Member]
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Sep. 30, 2012
Maximum number of shares in respect to stock options [Member]
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Sep. 30, 2012
Maximum restricted shares granted to one person [Member]
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Sep. 30, 2012
Restricted Stock [Member]
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Dec. 31, 2011
Restricted Stock [Member]
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Common Stock, Shares Authorized | 500,000,000 | 500,000,000 | |||||||||||||||||||||||
Common Stock, Shares, Outstanding | 12,523,872 | 12,427,220 | |||||||||||||||||||||||
Common stock reserved for issuance | 1,524 | 17,120 | |||||||||||||||||||||||
Class of Warrant or Right, Outstanding | 1,034,996 | ||||||||||||||||||||||||
Number of options outstanding | 1,639,842 | 1,674,065 | 1,772,348 | ||||||||||||||||||||||
Unvested Shares | 43,876 | 120,021 | |||||||||||||||||||||||
Issued but unvested restricted stock | 15,290 | ||||||||||||||||||||||||
Total stock and stock equivalents outstanding | 15,244,110 | ||||||||||||||||||||||||
Common Stock, Capital Shares Reserved for Future Issuance | 2,500,000 | 1,250,000 | 266,667 | 166,667 | |||||||||||||||||||||
Number of options vested and expected to vest outstanding | 1,520,793 | 1,345,541 | |||||||||||||||||||||||
Stock option expense | $ 100,000 | $ 200,000 | $ 600,000 | $ 800,000 | |||||||||||||||||||||
Non-qualified stock options | 665,088 | 273,536 | 1,136,748 | 229,558 | |||||||||||||||||||||
Contractural lives | 3 years 2 months 5 days | 3 years 2 months 5 days | 8 years 5 months 19 days | 8 years 6 months 11 days | |||||||||||||||||||||
Lower Limit | $ 4.5 | $ 5.42 | $ 5.7 | ||||||||||||||||||||||
Upper Limit | $ 14.4 | $ 23.85 | $ 19.2 | ||||||||||||||||||||||
Aggregate intrinsic value | 0 | 0 | |||||||||||||||||||||||
Unrecognized compensation costs | 200,000 | 400,000 | |||||||||||||||||||||||
Expected compensation cost | 100,000 | 100,000 | |||||||||||||||||||||||
Weighted average recognition period | 1 year 2 months 12 days | ||||||||||||||||||||||||
Restricted stock grants estimated forfeiture amount | 1.50% | 3.20% | |||||||||||||||||||||||
Stock based compensation | $ 831,063 | $ 1,147,669 | $ 200,000 | $ 400,000 | $ 800,000 | $ 800,000 | $ 1,100,000 | ||||||||||||||||||
Equity Issuance, Per Share Amount | $ 2.02 | $ 2.04 |