v2.4.0.6

Note 12 - Stockholders' Equity (Detail) - Stock option award activity: (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Number of shares, balance	2,795,182	2,091,108	207,760
Weighted average exercise price (per share), balance (in Dollars per share)	$ 2.84	$ 3.05	$ 9.09
Number of shares, vested	1,956,156	901,341	520,908
Weighted average exercise price (per share), vested (in Dollars per share)	$ 2.73	$ 3.76	$ 5.00
Number of shares, stock option awards granted	2,072,260	1,109,134	1,904,348
Weighted average exercise price (per share), stock option awards granted (in Dollars per share)	$ 1.36	$ 2.42	$ 2.40
Number of shares, stock option awards cancelled	(633,911)	(385,915)	(21,000)
Weighted average exercise price (per share), stock option awards cancelled (in Dollars per share)	$ 2.60	$ 2.75	$ 3.92
Number of shares, stock option awards exercised		(17,645)
Weighted average exercise price (per share), stock option awards exercised (in Dollars per share)		$ 1.87
Number of shares, stock option awards expired	(27,650)	(1,500)
Weighted average exercise price (per share), stock option awards expired (in Dollars per share)	$ 9.27	$ 15.83
Number of shares, balance	4,205,881	2,795,182	2,091,108
Weighted average exercise price (per share), balance (in Dollars per share)	$ 2.11	$ 2.84	$ 3.05

X

- Definition

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

+ References

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

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