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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Taxes |
Schedule of consolidated income before taxes for domestic and foreign operations |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Domestic |  | $ | (4,574 | ) |  | $ | (6,207 | )
Foreign |  |  | (1,350 | ) |  |  | (2,145 | )
Total |  | $ | (5,924 | ) |  | $ | (8,352 | )
Schedule of components of (provision) for income taxes |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Current: |  |  |  |  |  |  |  |
Federal |  | $ | 6,543 |  |  | $ | 26 |
State |  |  | (36 | ) |  |  | (23 | )
Foreign |  |  | (78 | ) |  |  | (59 | )
Total current |  |  | 6,429 |  |  |  | (56 | )
Deferred: |  |  |  |  |  |  |  |
Federal |  |  | (3,104 | ) |  |  | 1,621 |
State |  |  | 286 |  |  |  | 413 |
Foreign |  |  | 216 |  |  |  | 393 |
Total |  |  | (2,602 | ) |  |  | 2,427 |
Change in valuation allowance |  |  | 2,602 |  |  |  | (2,427 | )
Total deferred |  |  | — |  |  |  | — |
Tax benefit (provision) |  | $ | 6,429 |  |  | $ | (56 | )
Schedule of income tax (provision) differs from that computed at the federal statutory corporate income tax rate |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Tax benefit at federal statutory rate |  | $ | 1,244 |  |  | $ | 1,754 |
State income tax benefit (provision), net of federal benefit |  |  | 244 |  |  |  | 318 |
Research and development tax credits |  |  | 272 |  |  |  | 290 |
Foreign earnings or losses taxed at different rates |  |  | (38 | ) |  |  | (27 | )
Tax rate change, due primarily to loss carryback |  |  | 2,720 |  |  |  | (31 | )
Other |  |  | (615 | ) |  |  | 67 |
Change in valuation allowance |  |  | 2,602 |  |  |  | (2,427 | )
Tax provision |  | $ | 6,429 |  |  | $ | (56 | )
Schedule of tax effects of significant temporary differences representing net deferred tax assets and liabilities |
|  | 2020 |  |  | 2019 |
Deferred revenue |  | $ | 21 |  |  | $ | 36 |
Basis difference in intangible assets |  |  | 2,994 |  |  |  | 3,157 |
Inventory reserve |  |  | 2,434 |  |  |  | 2,247 |
Net operating loss carryforwards |  |  | 3,605 |  |  |  | 6,438 |
Research and development tax credits |  |  | 1,272 |  |  |  | 1,042 |
Accrued expenses |  |  | 61 |  |  |  | 163 |
Stock-based compensation |  |  | 309 |  |  |  | 322 |
Allowance for sales returns and doubtful accounts |  |  | 128 |  |  |  | 107 |
Difference in property and equipment basis |  |  | (145 | ) |  |  | (134 | )
Other |  |  | 479 |  |  |  | 382 |
Total net deferred income tax asset |  |  | 11,158 |  |  |  | 13,760 |
Less: Valuation allowance |  |  | (11,158 | ) |  |  | (13,760 | )
Net deferred income tax asset (liability) |  | $ | — |  |  | $ | — |
Schedule of reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |
Balance - beginning of year |  | $ | 298 |  |  | $ | 679 |
Additions based on tax positions related to the current year |  |  | 661 |  |  |  | 50 |
Additions for tax positions of prior years |  |  | — |  |  |  | 43 |
Reductions for tax positions of prior years |  |  | — |  |  |  | — |
Settlements |  |  | (43 | ) |  |  | (375 | )
Lapse in statutes of limitations |  |  | (55 | ) |  |  | (99 | )
Uncertain tax positions, ending balance |  | $ | 861 |  |  | $ | 298 |

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