Note 3 - Fair Value Measurements (Detail) (USD $)				1 Months Ended
	Dec. 23, 2012	Sep. 23, 2012	Mar. 25, 2012	Dec. 31, 2011 Total Assets [Member]	Dec. 31, 2011 Total Equity [Member]	Dec. 31, 2011 Revenues [Member]	Dec. 31, 2011 Net Loss [Member]
Cost Method Investment Ownership Percentage	2.50%	2.50%
Long-term Investments (in Dollars)	$ 500,000	$ 500,000	$ 0
Cost Method Investments, Additional Information				$668,000	$443,000	$215,000	$573,000