Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets [Line Items]
Investments	$ 1,606,000	$ 293,000
Marketable Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets [Line Items]
Investments	1,256,000	293,000
Marketable Securities [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets [Line Items]
Investments	1,256,000	293,000
Warrant [Member] | Fair Value, Inputs, Level 2 [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets [Line Items]
Investments	350,000
Warrant [Member]
Note 2 - Summary of Significant Accounting Policies (Details) - Fair Value of Company's Financial Assets [Line Items]
Investments	$ 350,000