Note 2 - Summary of Significant Accounting Policies (Detail) - Option Activity (USD $)	9 Months Ended
Sep. 30, 2012
Outstanding as of December 31, 2011	2,318,498
Outstanding as of December 31, 2011 (in Dollars per share)	$ 2.28
Granted	120,000
Granted (in Dollars per share)	$ 0.27
Cancelled/forfeited	(212,248)
Cancelled/forfeited (in Dollars per share)	$ 2.52
Outstanding as of September 30, 2012	2,226,250
Outstanding as of September 30, 2012 (in Dollars per share)	$ 2.17
Outstanding as of September 30, 2012	7 years
Exercisable as of September 30, 2012	1,394,611
Exercisable as of September 30, 2012 (in Dollars per share)	$ 3.02
Exercisable as of September 30, 2012	6 years 36 days

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Name Accounting Standards Codification

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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