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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2021
Summary of Significant Accounting Policies |
Schedule of cash and cash equivalents |
|  | December 31, 2021 |  |  | December 31, 2020 |
Cash and cash equivalents |  | $ | 3,766,000 |  |  | $ | 7,128,000 |
Restricted cash |  |  | 85,000 |  |  |  | — |
Total cash and cash equivalents and restricted cash |  | $ | 3,851,000 |  |  | $ | 7,128,000 |
Allowance for doubtful accounts |
December 31 |  | 2021 |  |  | 2020 |
Beginning balance |  | $ | 268,000 |  |  | $ | 65,000 |
Bad debt provision |  |  | 71,000 |  |  |  | 203,000 |
Accounts written-off |  |  | 111,000 |  |  |  | — |
Recoveries |  |  | (95,000 | ) |  |  | — |
Ending balance |  | $ | 355,000 |  |  | $ | 268,000 |
Inventories |
December 31 |  | 2021 |  |  | 2020 |
Raw materials |  | $ | — |  |  | $ | 32,000 |
Work-in-process |  |  | — |  |  |  | 2,000 |
Finished goods |  |  | 19,000 |  |  |  | 51,000 |
|  | $ | 19,000 |  |  | $ | 85,000 |
Schedule of property and Equipment |
Production tooling, machinery and equipment | 1 – 6 years
Office furniture and fixtures | 1 – 3 years
Computer equipment and software | 3 – 5 years
Leasehold improvements | 1 –3 years
Weighted average common shares outstanding |
Year ended December 31 |  | 2021 |  |  | 2020 |
Denominator for basic net loss per share - weighted average shares |  |  | 1,760,000 |  |  |  | 1,734,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options, restricted stock units and restricted stock awards |  |  | — |  |  |  | — |
Denominator for diluted net loss per share - weighted average shares |  |  | 1,760,000 |  |  |  | 1,734,000 |

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