Note 12 - Warrants (Detail) - Warrant Activity (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Issued (in Dollars per share)	$ 2.88	$ 8.04
Currently exercisable	89,254,000	134,536,000
Currently exercisable (in Dollars per share)	$ 50.81	$ 53.44
Warrant [Member]
Outstanding at January 1,		292,856
Outstanding at January 1, (in Dollars per share)		$ 27.60
Issued		300,000
Issued (in Dollars per share)		$ 14.94
Expired		(17,979)
Expired (in Dollars per share)		$ 83.94
Warrant redemption		(162,098)
Warrant redemption (in Dollars per share)		$ 19.68
Outstanding at December 31,	412,779	412,779
Outstanding at December 31, (in Dollars per share)	$ 14.11	$ 14.11
Currently exercisable	412,779	412,779
Currently exercisable (in Dollars per share)	$ 14.11	$ 14.11

No authoritative reference available.

No definition available.

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- Definition

No authoritative reference available.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

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

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

+ References

No definition available.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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