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Equity Incentive Plan (Tables) | 12 Months Ended
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Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Share-based Payment Arrangement, Option, Activity [Table Text Block] | Option activity is summarized below:
|  | Shares |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value
Options outstanding at January 1, 2019 |  | 20,050 |  |  | $ | 199.06 |  |  |  |  |
Granted |  | — |  |  | $ | — |  |  |  |  |
Exercised |  | — |  |  | $ | — |  |  |  |  |
Forfeited |  | (17,450) |  |  | $ | 160.93 |  |  |  |  |
Options outstanding at December 31, 2019 |  | 2,600 |  |  | $ | 781.19 |  |  |  |  |
Granted |  | 130,000 |  |  | $ | 2.52 |  |  |  |  |
Exercised |  | (30,000) |  |  | $ | 2.52 |  |  |  |  |
Forfeited |  | (1,425) |  |  | $ | 995.07 |  |  |  |  |
Options outstanding at December 31, 2020 |  | 101,175 |  |  | $ | 8.94 |  |  | 5.4 |  | $ | — |
Vested and expected to vest at December 31, 2020 |  | 101,175 |  |  | $ | 8.94 |  |  | 5.4 |  | $ | — |
Exercisable at December 31, 2020 |  | 101,175 |  |  | $ | 8.94 |  |  | 5.4 |  | $ | — |
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] | The following table summarizes information about RSU activity:
| Number of Shares |  | Weighted Average Grant Date Fair Value
Outstanding — January 1, 2019 | 53,004 |  |  | $ | 31.21 |
Granted | 100,000 |  |  | $ | 2.51 |
Vested and released | (131,541) |  |  | $ | 9.68 |
Forfeited | (665) |  |  | $ | 64.95 |
Outstanding — December 31, 2019 | 20,798 |  |  | $ | 4.99 |
Granted | — |  |  | $ | — |
Vested and released | (20,420) |  |  | $ | 3.82 |
Forfeited | (378) |  |  | $ | 68.02 |
Outstanding — December 31, 2020 | — |  |  | $ | — |
Schedule of Share-based Compensation, Restricted Stock Awards [Table Text Block] | The following table summarizes information about RSA activity:
| Number of Shares |  | Weighted Average Grant Date Fair Value
Outstanding — January 1, 2019 | — |  |  | $ | — |
Granted | 194,000 |  |  | $ | 1.20 |
Vested | (194,000) |  |  | $ | 1.20 |
Outstanding — December 31, 2019 | — |  |  | $ | — |
Granted | 400,841 |  |  | $ | 1.92 |
Vested | (400,841) |  |  | $ | 1.92 |
Outstanding — December 31, 2020 | — |  |  | $ | — |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] | The Company recorded the following compensation expense related to its share-based compensation awards (in thousands):
| Year Ended December 31,
| 2020 |  | 2019 |  |
Cost of sales | $ | — |  |  | $ | — |  |  |
Sales and marketing | 2 |  |  | 279 |  |  |
Research and development | 3 |  |  | 61 |  |  |
General and administrative | — |  |  | 297 |  |  |
Total share-based compensation expense | $ | 5 |  |  | $ | 637 |  |  |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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