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Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 11.00 | $ 11.38
Shares Under Outstanding Options | 169,565 | 235,379
Weighted-Average Remaining Contractual Term | 6 years 62 days |
Shares Under Exercisable Options | 96,026 |
Exercise Price 1 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 3.84 |
Shares Under Outstanding Options | 4,000 |
Weighted-Average Remaining Contractual Term | 146 days |
Shares Under Exercisable Options | 4,000 |
Exercise Price 2 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 10.44 |
Shares Under Outstanding Options | 25,000 |
Weighted-Average Remaining Contractual Term | 4 years 146 days |
Shares Under Exercisable Options | 25,000 |
Exercise Price 3 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 10.90 |
Shares Under Outstanding Options | 15,000 |
Weighted-Average Remaining Contractual Term | 3 years 255 days |
Shares Under Exercisable Options | 15,000 |
Exercise Price 4 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 10.90 |
Shares Under Outstanding Options | 69,000 |
Weighted-Average Remaining Contractual Term | 8 years 255 days |
Shares Under Exercisable Options | 13,800 |
Exercise Price 5 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 11.22 |
Shares Under Outstanding Options | 30,565 |
Weighted-Average Remaining Contractual Term | 7 years 73 days |
Shares Under Exercisable Options | 12,226 |
Exercise Price 6 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 11.54 |
Shares Under Outstanding Options | 8,000 |
Weighted-Average Remaining Contractual Term | 3 years 146 days |
Shares Under Exercisable Options | 8,000 |
Exercise Price 7 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 11.75 |
Shares Under Outstanding Options | 8,000 |
Weighted-Average Remaining Contractual Term | 2 years 146 days |
Shares Under Exercisable Options | 8,000 |
Exercise Price 8 [Member] |  |
Note D - Stock Based Compensation (Details) - Stock Option Activity by Exercise Price [Line Items] |  |
Exercise Price (in Dollars per share) | $ 14.32 |
Shares Under Outstanding Options | 10,000 |
Weighted-Average Remaining Contractual Term | 1 year 146 days |
Shares Under Exercisable Options | 10,000 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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 Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: 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 price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, 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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