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GOODWILL AND INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of intangible assets [Table Text Block] | The Company does not believe there is any significant residual value associated with the following intangible assets:
| December 31, 2019 |  | December 31, 2018
(in thousands) | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net
Domain name | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |  |  | $ | 1,261 |  |  | $ | — |  |  | $ | 1,261 |
In-process research and development | — |  |  | — |  |  | — |  |  | 4,690 |  |  | — |  |  | 4,690 |
Developed technology | 37,960 |  |  | (25,933 | ) |  | 12,027 |  |  | 33,270 |  |  | (22,464 | ) |  | 10,806 |
Customer relationships | 20,030 |  |  | (18,098 | ) |  | 1,932 |  |  | 20,030 |  |  | (16,520 | ) |  | 3,510 |
Technology licenses | 1,926 |  |  | (281 | ) |  | 1,645 |  |  | 1,000 |  |  | (115 | ) |  | 885 |
Total intangible assets | $ | 61,177 |  |  | $ | (44,312 | ) |  | $ | 16,865 |  |  | $ | 60,251 |  |  | $ | (39,099 | ) |  | $ | 21,152 |
Schedule of expected amortization expense [Table Text Block] | The estimated future amortization expense related to definite-lived intangible assets at December 31, 2019, is as follows:
Fiscal Year | Estimated Amortization (in thousands)
2020 | $ | 4,359 |
2021 | 3,494 |
2022 | 2,415 |
2023 | 2,173 |
2024 | 1,279 |
Thereafter | 1,884 |
Total | $ | 15,604 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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