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Note 8 - Goodwill and Intangible Assets | 3 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Goodwill and Intangible Assets Disclosure [Text Block] | 8 . GOODWILL AND INTANGIBLE ASSETS Goodwill is attributable to the acquisition of Genasys and is due to combining the mass messaging solutions and software development capabilities with existing LRAD products for enhanced offerings and the skill level of the workforce. The Company periodically reviews goodwill for impairment in accordance with relevant accounting standards. There were no additions or impairments to goodwill during the three months ended December 31, 2018. During the year ended September 30, 2018, the Company determined that certain patents were impaired. These patents supported products that are no longer sold by the Company. The Company recorded a non-cash loss on the impairment of these patents of $11,133 for the year ended September 30, 2018. There was no impairment loss for the three months ended December 31, 2018. Intangible assets and goodwill related to Genasys are translated from Euros to U.S. dollars at the balance sheet date. The net impact of foreign currency exchange differences arising during the period related to goodwill and intangible assets was a reduction of $54,009. The Company’s intangible assets consisted of the following:
|  | December 31, |  |  | September 30, |
|  | 2018 |  |  | 2018 |
Technology |  | $ | 639,381 |  |  | $ | 648,208 |
Customer relationships |  |  | 611,582 |  |  |  | 620,026 |
Trade name portfolio |  |  | 222,394 |  |  |  | 225,464 |
Non-compete agreements |  |  | 240,926 |  |  |  | 244,252 |
Patents |  |  | 72,126 |  |  |  | 72,126 |
|  |  | 1,786,409 |  |  |  | 1,810,076 |
Accumulated amortization |  |  | (326,837 | ) |  |  | (252,730 | )
|  | $ | 1,459,572 |  |  | $ | 1,557,346 |
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
Amortization expense |  | $ | 76,807 |  |  | $ | 1,804 |
Estimated amortization expense for the twelve months ended December 31,
2019 |  | $ | 307,884 |
2020 |  |  | 307,633 |
2021 |  |  | 230,373 |
2022 |  |  | 226,957 |
2023 |  |  | 183,869 |
Thereafter |  |  | 202,856 |
Total estimated amortization expense |  | $ | 1,459,572 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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