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Note P - Option Activity (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015
The1999 Stock Option Plan [Member] |  |  |
Outstanding (in shares) | 250,000 | 250,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  |
Exercised (in shares) |  |  |
Forfeited (in shares) |  |  |
Expired (in shares) |  |  |
Outstanding (in shares) | 250,000 | 250,000 |
The2004 Stock Option Plan [Member] |  |  |
Outstanding (in shares) | 1,635,305 | 1,845,304 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  |
Exercised (in shares) |  | (54,166) |
Forfeited (in shares) | (41,667) | (129,168) |
Expired (in shares) | (573,638) | (26,665) |
Outstanding (in shares) | 1,020,000 | 1,635,305 |
Non Plan [Member] |  |  |
Outstanding (in shares) | 2,210,000 | 600,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 1,428,000 | 1,835,000 |
Exercised (in shares) |  |  |
Forfeited (in shares) | (462,585) | (225,000) |
Expired (in shares) | (66,582) |  |
Outstanding (in shares) | 3,108,833 | 2,210,000 |
Outstanding (in shares) | 4,095,305 | 2,695,304 |
Outstanding, weighted average exercise price (in dollars per share) | $ 0.36 | $ 0.33 |
Outstanding, aggregate intrinsic value | $ 24,325 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 1,428,000 | 1,835,000 |
Granted, weighted average exercise price (in dollars per share) | $ 0.18 | $ 0.39 |
Exercised (in shares) | 0 | (54,166) |
Exercised, weighted average exercise price (in dollars per share) |  | $ 0.25 |
Forfeited (in shares) | (504,252) | (354,168) |
Forfeited, weighted average exercise price (in dollars per share) | $ 0.31 | $ 0.34 |
Expired (in shares) | (640,220) | (26,665) |
Expired, weighted average exercise price (in dollars per share) | $ 0.25 | $ 0.29 |
Outstanding (in shares) | 4,378,833 | 4,095,305 |
Outstanding, weighted average exercise price (in dollars per share) | $ 0.32 | $ 0.36 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 4 years 208 days | 4 years 164 days |
Outstanding, aggregate intrinsic value | $ 24,325 |  | $ 240
Granted, weighted average exercise price (in dollars per share) | $ 0.18 | $ 0.39 |
Exercised, weighted average exercise price (in dollars per share) |  | 0.25 |
Forfeited, weighted average exercise price (in dollars per share) | $ 0.31 | 0.34 |
Expired, weighted average exercise price (in dollars per share) | $ 0.25 | $ 0.29 |
Outstanding, weighted average remaining life | 4 years 208 days | 4 years 164 days |
Subject to vesting at December 31, 2015 (in shares) |  |  | 3,628,853
Subject to vesting at December 31, 2015 (in dollars per share) |  |  | $ 0.34
Subject to vesting at December 31, 2015 | 4 years 80 days |  |
Subject to vesting at December 31, 2015 |  |  | $ 129
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number |  |  | 1,931,653
Exercisable, weighted average exercise price (in dollars per share) |  |  | $ 0.38
Exercisable, weighted average remaining life | 2 years 343 days |  |
Exercisable, aggregate intrinsic value |  |  | $ 0

X
- 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 The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to 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)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options 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 -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 Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options 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 (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. + 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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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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 -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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- Definition Weighted average remaining contractual term for fully vested and expected to vest options 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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