Note 4 - Marketable Securities (Details) (USD $)	3 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013
Investments, Debt and Equity Securities [Abstract]
Marketable Securities, Current	$ 1,036,760	$ 1,460,518	$ 0
Available-for-sale Securities, Amortized Cost Basis	1,130,000
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	29,000
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	122,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	809,000
Marketable Securities, Realized Gain (Loss), Excluding Other than Temporary Impairments	$ 8,410