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Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price (USD $) | 3 Months Ended
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Mar. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Under Outstanding Options | 145,006
Weighted-Average Remaining Contractual Term | 6 years
Shares Under Exercisable Options | 76,992
Exercise Price 1 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 10.44
Shares Under Outstanding Options | 20,000
Weighted-Average Remaining Contractual Term | 3 years 328 days
Shares Under Exercisable Options | 20,000
Exercise Price 2 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 10.90
Shares Under Outstanding Options | 12,000
Weighted-Average Remaining Contractual Term | 3 years 73 days
Shares Under Exercisable Options | 12,000
Exercise Price 3 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 10.90
Shares Under Outstanding Options | 66,000
Weighted-Average Remaining Contractual Term | 8 years 73 days
Shares Under Exercisable Options | 10,800
Exercise Price 4 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 11.22
Shares Under Outstanding Options | 27,006
Weighted-Average Remaining Contractual Term | 6 years 255 days
Shares Under Exercisable Options | 14,192
Exercise Price 5 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 11.54
Shares Under Outstanding Options | 6,000
Weighted-Average Remaining Contractual Term | 2 years 328 days
Shares Under Exercisable Options | 6,000
Exercise Price 6 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 11.75
Shares Under Outstanding Options | 6,000
Weighted-Average Remaining Contractual Term | 1 year 328 days
Shares Under Exercisable Options | 6,000
Exercise Price 7 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Price (in Dollars per share) | $ 14.32
Shares Under Outstanding Options | 8,000
Weighted-Average Remaining Contractual Term | 328 days
Shares Under Exercisable Options | 8,000

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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