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Inventories | 12 Months Ended
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Dec. 31, 2021
Inventory Disclosure [Abstract] |
Inventories |
(4) | Inventories
Schedule of inventories
|  | December 31, |
|  | 2021 |  |  | 2020 |
Raw materials and component parts |  | $ | 111,312 |  |  | $ | 66,492 |
Finished goods |  |  | 87,602 |  |  |  | 92,330 |
Inventories |  | $ | 198,914 |  |  | $ | 158,822 |
Overhead included in inventory aggregated $3.7 million and $5.4 million as of December 31, 2021 and 2020, respectively. Included in inventories is an inventory reserve, which represents the difference between the cost of the inventory and its estimated realizable value, based upon sales forecasts and the physical condition of the inventories. In addition, and as necessary, specific reserves for future known or anticipated events may be established. Inventory reserves aggregated $15.8 million and $9.4 million as of December 31, 2021 and 2020, respectively.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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