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Note 5 - Common Stock Unit Activity (Details) (USD $)
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12 Months Ended | |
|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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| Nonvested, Balance (in shares) | 53,324us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares | 100,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares |
| Nonvested weighted average grant-date fair value (in dollars per share) | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue |
| Vested (in shares) | (25,342)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares | (26,676)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares |
| Vested (in dollars per share) | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue |
| Forfeited (in shares) | (3,998)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares | (20,000)us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares |
| Forfeited (in dollars per share) | $ 1.37us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue | |
| Nonvested, Balance (in shares) | 23,984us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares | 53,324us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares |
| Nonvested weighted average grant-date fair value (in dollars per share) | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue |
| Forfeited (in dollars per share) | $ 1.37us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue | |
| 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
Number of non-vested options outstanding. No definition available.
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| X | ||||||||||
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- Definition
Number of non-vested options forfeited. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant-date fair value of non-vested options forfeited. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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| X | ||||||||||
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- Definition
Number of options vested. No definition available.
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| X | ||||||||||
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- Definition
Weighted average grant-date fair value of options vested. No definition available.
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