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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Allowance for doubtful accounts |
December 31 |  | 2020 |  |  | 2019 |
Beginning balance |  | $ | 65,000 |  |  | $ | 22,000 |
Bad debt provision |  |  | 203,000 |  |  |  | 47,000 |
Accounts written-off |  |  | - |  |  |  | (4,000 | )
Ending balance |  | $ | 268,000 |  |  | $ | 65,000 |
Inventories |
December 31 |  | 2020 |  |  | 2019 |
Raw materials |  | $ | 32,000 |  |  | $ | 47,000 |
Work-in-process |  |  | 2,000 |  |  |  | 16,000 |
Finished goods |  |  | 51,000 |  |  |  | 259,000 |
|  | $ | 85,000 |  |  | $ | 322,000 |
Estimated useful lives |
Production tooling, machinery and equipment | 1 - 6 years
Office furniture and fixtures | 1 - 3 years
Computer equipment and software | 3 - 5 years
Selling arrangement |
|  | 2020 |  |  | 2019 |
Gross cost |  | $ | 4,000,000 |  |  | $ | 4,000,000 |
Accumulated amortization |  |  | (4,000,000 | ) |  |  | (3,683,000 | )
Net carrying amount |  | $ | - |  |  | $ | 317,000 |
Asset impairment |
As of December 31, 2019 |  |  |
Property and Equipment, net: |  |  |
Balance prior to impairment |  | $ | 2,563,000 |
Impairment charge |  |  | (2,014,000 | )
Ending balance |  | $ | 549,000 |
Weighted average common shares outstanding |
Year ended December 31 |  | 2020 |  |  | 2019 |
Denominator for basic net loss per share - weighted average shares |  |  | 1,734,000 |  |  |  | 1,706,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options, restricted stock units and restricted stock awards |  |  | - |  |  |  | - |
Denominator for diluted net loss per share - weighted average shares |  |  | 1,734,000 |  |  |  | 1,706,000 |

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