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Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Product Warranty Liability [Table Text Block] |
|  | As of December 31, |
|  | 2020 |  |  | 2019 |
Balance, beginning of period |  | $ | 163 |  |  | $ | 226 |
Reduction of warranty reserve |  |  | (78 | ) |  |  | (32 | )
Warranty claims |  |  | (52 | ) |  |  | (21 | )
Other adjustments |  |  | — |  |  |  | (10 | )
Balance, end of period |  | $ | 33 |  |  | $ | 163 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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