Note G - Accumulated Other Comprehensive Income - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2016
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Balance, beginning of period	$ 7,077	$ 5,310
Other comprehensive income before reclassifications, net of tax of $230	(376)	1,009
Amounts reclassified from accumulated other comprehensive income, net of tax benefit	(485)	(103)
Net current-period other comprehensive income	(861)	906
Balance, end of period	6,216	6,216
Balance, beginning of period		5,310
Net current-period other comprehensive income		906
Balance, end of period	$ 6,216	$ 6,216

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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