Note 3 - Investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 3 - Investments (Details) [Line Items]
Investments	$ 1,606,000	$ 293,000
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	601,000	24,000
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	376,000	14,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)	167,500
Marketable Securities [Member]
Note 3 - Investments (Details) [Line Items]
Investments	1,256,000	293,000
Warrant [Member]
Note 3 - Investments (Details) [Line Items]
Investments	$ 350,000