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Stock- Based Compensation (Details Textual) (USD $)
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6 Months Ended | 6 Months Ended | |||||||
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
1994 Plan [Member]
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Dec. 31, 2004
1994 Plan [Member]
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Jun. 30, 2012
2003 Plan [Member]
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Sep. 18, 2003
2003 Plan [Member]
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Dec. 31, 2010
Amended 2003 Plan [Member]
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Dec. 31, 2008
Amended 2003 Plan [Member]
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Dec. 31, 2007
Amended 2003 Plan [Member]
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| Stock-Based Compensation (Textual) [Abstract] | |||||||||
| Common stock reserved for future issuance | 450,000 | 450,000 | 1,160,000 | 810,000 | 670,000 | ||||
| Shares of common stock vested and exercisable | 12,000 | 688,651 | |||||||
| Percentage of option price | 100.00% | 100.00% | |||||||
| Stock option period | 10 years | 10 years | |||||||
| Vesting period | Over a three-year period | Over a three-year period | |||||||
| Weighted average fair value of options granted at market | $ 0.38 | $ 2.30 | |||||||
| Total intrinsic value | $ 0 | $ 0 | |||||||
| Intrinsic value of outstanding exercisable options | $ 0 | $ 44,368 | |||||||
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- Definition
Share-based compensation arrangement by share-based payment award grant , options price. No definition available.
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- Definition
Share based compensation arrangement by share based payment award options expiration period maximum. No definition available.
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- Details
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- Definition
Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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