Note 8 - Goodwill and Patents |
3 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Notes to Financial Statements | |
| Goodwill and Intangible Assets Disclosure [Text Block] |
Note 8. Goodwill and PatentsThe Company analyzes its goodwill for impairment annually or at an interim period when events occur or changes in circumstances indicate potential impairment. The result of the analysis performed in the fourth quarter ended September 30, 2018 did not indicate an impairment of goodwill. During the three months ended December 31, 2018, there were no triggering events that indicate potential impairment exists.The Company capitalizes legal costs incurred to obtain patents. Once accepted by either the U.S. Patent Office or the equivalent office of a foreign country, these legal costs are amortized using the straight-line method over the remaining estimated lives, granted and multiple pending applications both inside and outside the United States.not exceeding 20 years. As of December 31, 2018, the Company has 15 patents |