Note 3 - Share-Based Compensation (Detail) - Stock option activity (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Options outstanding as of December 31, 2011		2,145,003	2,200,003
Options outstanding as of December 31, 2011 (in Dollars per share)		$ 1.49
Options outstanding as of December 31, 2011	2 years 102 days	2 years 233 days
Canceled/expired/forfeited	(348,334)
Options outstanding as of September 30, 2012	1,796,669		2,200,003
Options outstanding as of September 30, 2012 (in Dollars per share)	$ 1.49
Options outstanding as of September 30, 2012	2 years 102 days	2 years 233 days
Options exercisable as of September 30, 2012	1,435,002
Options exercisable as of September 30, 2012 (in Dollars per share)	$ 1.48
Options exercisable as of September 30, 2012	2 years 32 days