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Note C - Marketable Equity Securities (Details) - Approximate Gross Unrealized Losses and Fair Value of Securities in a Loss Position - Equity Securities [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Note C - Marketable Equity Securities (Details) - Approximate Gross Unrealized Losses and Fair Value of Securities in a Loss Position [Line Items]
Equity securities – Available-for-sale	$ 5,310	$ 3,961
Equity securities – Available-for-sale	633	390
Totals	5,310	3,961
Totals	$ 633	$ 390

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

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section 50



-Paragraph 2



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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary 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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