Note 6 - Stock-based Compensation (Detail) - Summary of restricted shares (USD $)	9 Months Ended
	Sep. 30, 2012
Long Term Incentive Plan [Member]
Restricted stock - common stock:
Number of Shares	0
Grant Date Fair Value Per Share (in Dollars per share)	$ 0
Granted	432,396
Granted (in Dollars per share)	$ 1.65
Vested	0
Vested (in Dollars per share)	$ 0
Number of Shares	432,396
Grant Date Fair Value Per Share (in Dollars per share)	$ 1.65
Directors Restricted Stock Plan [Member]
Restricted stock - common stock:
Number of Shares	10,000
Grant Date Fair Value Per Share (in Dollars per share)	$ 4.94
Granted	0
Granted (in Dollars per share)	$ 0
Vested	0
Vested (in Dollars per share)	$ 0
Number of Shares	10,000
Grant Date Fair Value Per Share (in Dollars per share)	$ 4.94