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Note 5 - Stock-Based Compensation (Detail) - Restricted Stock Activity (USD $)
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12 Months Ended | 0 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2010
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May 12, 2011
Restricted Stock [Member]
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Dec. 31, 2012
Restricted Stock [Member]
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Dec. 31, 2011
Restricted Stock [Member]
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| Shares | 473,688 | 114,613 | |||
| Weighted Average Price at Date of Issuance (in Dollars per share) | $ 1.80 | $ 0.37 | $ 0.45 | ||
| Shares | 600,000 | 0 | 620,000 | ||
| Weighted Average Price at Date of Issuance (in Dollars per share) | $ 1.37 | $ 0 | $ 0.37 | ||
| Shares | (212,030) | (242,177) | |||
| Weighted Average Price at Date of Issuance (in Dollars per share) | $ 0.36 | $ 0.38 | |||
| Shares | (18,748) | ||||
| Weighted Average Price at Date of Issuance (in Dollars per share) | $ 0.69 | ||||
| Shares | 261,658 | 473,688 | |||
| Weighted Average Price at Date of Issuance (in Dollars per share) | $ 1.80 | $ 0.37 | $ 0.37 | ||
| X | ||||||||||
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- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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