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Commitments and Contingencies - Additional Information (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 USD ($) ft² Customer | Sep. 30, 2019 USD ($) Customer | Sep. 30, 2020 USD ($) ft² Customer | Sep. 30, 2019 USD ($) Customer | Dec. 31, 2019 Customer
Operating Leased Assets [Line Items] |  |  |  |  |
Operating lease, rent expense | $ | $ 162,262 | $ 154,029 | $ 528,418 | $ 493,045 |
Purchase commitments description |  |  | In the normal course of business the Company enters into purchase commitments for inventory components to be delivered based upon pre-established delivery schedules over a period that may exceed one year. |  |
Number of customer’s more than10% of revenue | Customer | 2 | 1 | 2 | 1 |
Number of customers more than 10% of net trade accounts receivable | Customer | 3 |  | 3 |  | 2
Revenue | Customer Concentration Risk |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Customers accounted for 10% or more of annual revenues | 23.30% | 14.70% | 35.20% | 35.00% |
Accounts Receivable | Customer Concentration Risk |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Customers accounted for 10% or more of annual revenues | 67.00% |  |  |  | 90.00%
Net Purchases | Customer Concentration Risk |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Customers accounted for 10% or more of annual revenues | 31.00% | 32.00% | 24.00% | 11.00% |
Offices, Manufacturing and Warehouse Facility | Bressner Technology GmbH |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Operating leases, area | 8,073 |  | 8,073 |  |
Offices, Manufacturing and Warehouse Facility | Escondido, California |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Operating leases, area | 29,342 |  | 29,342 |  |
Operating lease renewal period |  |  | 2018-08 |  |
Operating lease, expiration date |  |  | Aug. 31, 2024 |  |
Offices, Manufacturing and Warehouse Facility | Salt Lake City, Utah |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Operating leases, area | 3,208 |  | 3,208 |  |
Offices, Manufacturing and Warehouse Facility | Irvine, California | CDI |  |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |  |
Operating leases, area | 12,000 |  | 12,000 |  |
Operating lease, expiration date |  |  | Mar. 31, 2021 |  |

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