Note 3 - Merger (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended
Nov. 08, 2012
Note 3 - Merger (Details) [Line Items]
Stockholders' Equity, Reverse Stock Split	1:6
Net closing cash balance (in Dollars)	$ 27.0
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)	0.1249539870
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options (in Shares)	500,000
Business Combination, Bargain Purchase, Gain Recognized, Amount (in Dollars)	$ 7.8
Biota Holdings Limited
Note 3 - Merger (Details) [Line Items]
Ownership Percentage	83.00%
Nabi
Note 3 - Merger (Details) [Line Items]
Ownership Percentage	17.00%
Nabi \| Minimum [Member]
Note 3 - Merger (Details) [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price (in Dollars per share)	$ 11.34
Fair Value Assumptions, Expected Volatility Rate	78.79%
Fair Value Assumptions, Risk Free Interest Rate	0.12%
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	109 days
Nabi \| Maximum [Member]
Note 3 - Merger (Details) [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price (in Dollars per share)	$ 99.91
Fair Value Assumptions, Expected Volatility Rate	99.62%
Fair Value Assumptions, Risk Free Interest Rate	0.87%
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	6 years 36 days

Minimum amount of net cash balance to consummate the Merger.

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- Definition

Percentage of common stock owned by shareholders.

+ References

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Number of shares of equity interests issued or issuable to acquire entity.

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- Definition

In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Weighted average remaining contractual term of exercisable stock options, 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 reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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