Note 3 - Stock-Based Compensation (Detail) - Restricted Stock Award (USD $)	6 Months Ended
	Jun. 30, 2012
Nonvested shares – December 31, 2011	146,624
Nonvested shares – December 31, 2011 (in Dollars per share)	$ 12.14	[1]
Granted	6,290
Granted (in Dollars per share)	$ 7.10	[1]
Forfeited	(26,522)
Forfeited (in Dollars per share)	$ 12.04	[1]
Vested	(2,772)
Vested (in Dollars per share)	$ 10.24	[1]
Nonvested shares – June 30, 2012	123,620
Nonvested shares – June 30, 2012 (in Dollars per share)	$ 11.95	[1]

[1] The shares were valued at the closing price of the Company's common stock on the dates of the awards.