Note 4 - Accounting For Stock-Based Compensation (Detail) - Employee Equity-Based Compensation Expense Recognized (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Employees equity-based compensation expense	$ 40	$ (13)	$ 101	$ 57
Selling and Marketing Expense [Member]
Employees equity-based compensation expense	2	0	5	8
General and Administrative Expense [Member]
Employees equity-based compensation expense	$ 38	$ (13)	$ 96	$ 49