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Note 3 - Marketable Equity Securities (Details) - Approximate Gross Unrealized Losses and Fair Value of Securities in a Loss Position (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 3 - Marketable Equity Securities (Details) - Approximate Gross Unrealized Losses and Fair Value of Securities in a Loss Position [Line Items]
Equity securities – Trading	$ 165	$ 132
Equity Securities [Member]
Note 3 - Marketable Equity Securities (Details) - Approximate Gross Unrealized Losses and Fair Value of Securities in a Loss Position [Line Items]
Equity securities – Available for sale	397	1,567
Equity securities – Available for sale	17	133
Equity securities – Trading		129
Equity securities – Trading		26
Totals	397	1,696
Totals	$ 17	$ 159

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Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale equity securities.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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Amount of unrealized holding loss before gain recognized in the income statement for investments in trading securities.

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The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period.

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