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Note 6 - Inventory | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Notes to Financial Statements |  |
Inventory Disclosure [Text Block] | 6. INVENTORY Inventory is stated at the lower of cost, determined on a first in, first out basis, or realizable value. The Company periodically evaluates inventory items and establishes reserves for obsolescence accordingly. The Company also reserves for excess quantities, slow moving goods, and for other impairment of value based upon assumptions of future demand and market conditions. The $400,000 reserve on inventory is due to slow moving inventory purchased for projects in Nigeria. The Company is looking into other markets and opportunities to sell or return the product. Inventory is comprised of the following as of:
|  | March 31, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
Finished goods |  | $ | 4,758,089 |  |  | $ | 4,764,643 |
Fabricated assemblies |  |  | 69,726 |  |  |  | 69,726 |
Reserve on finished goods |  |  | (400,000 | ) |  |  | (400,000 | )
Total inventory |  | $ | 4,427,815 |  |  | $ | 4,434,369 |
| NOTE G—INVENTORY Inventory is stated at the lower of cost, determined on a first in, first out basis, or realizable value. The Company periodically evaluates inventory items and establishes reserves for obsolescence accordingly. The Company also reserves for excess quantities, slow moving goods, and for other impairment of value based upon assumptions of future demand and market conditions. The $400,000 reserve on inventory is due to slow moving inventory purchased for projects in Nigeria. The Company is looking into other markets and opportunities to sell or return the product. Inventory is comprised of the following as of December 31:
|  | 2022 |  |  | 2021 |
Finished goods |  | $ | 4,764,643 |  |  | $ | 4,798,203 |
Fabricated assemblies |  |  | 69,726 |  |  |  | 142,457 |
Reserve on finished goods |  |  | (400,000 | ) |  |  | - |
Total inventory |  | $ | 4,434,369 |  |  | $ | 4,940,660 |

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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 -Topic 330 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//330/tableOfContent + Details
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