Note 3 - Option Agreement (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Mar. 20, 2012
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			5.00%
Noncontrolling Interest, Ownership Percentage by Parent			96.00%
Increase In Shares Covered By Option			10.00%
Open Option Contracts Written, Exercise Price (in Dollars per Item)			1,000,000
Marketing Expense (in Dollars)	$ 2,214,000	$ 2,109,000
Other Liabilities, Noncurrent (in Dollars)	148,000	140,000
Option Expense [Member]
Marketing Expense (in Dollars)	18,000
Other Liabilities, Noncurrent (in Dollars)	$ 18,000