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Note 9 - Options: Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Tables) | 12 Months Ended
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Dec. 31, 2016
Tables/Schedules |
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range |
|  |  |  | Options Outstanding |  |  | Options Exercisable
| Range of Exercise Prices |  |  | Number Outstanding |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price
$ | 24.00 | - | 33.30 |  |  | 20,936 |  | 3.40 |  | $ | 27.50 |  |  | 20,936 |  | $ | 27.50
| 49.18 | - | 58.50 |  |  | 53,736 |  | 8.66 |  |  | 54.07 |  |  | 15,359 |  |  | 49.24
$ | 24.00 | - | 58.50 |  |  | 74,672 |  | 7.18 |  | $ | 46.62 |  |  | 36,295 |  | $ | 36.70

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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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