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INVENTORIES | 3 Months Ended
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Mar. 31, 2022
INVENTORIES |
INVENTORIES | NOTE 9. INVENTORIES Inventories are valued at the lower of cost or net realizable value and computed on a first-in, first-out basis. Components of inventories were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ |  | 2022 |  | 2021
Parts and raw materials | ​ | $ | 273,435 | ​ | $ | 261,365
Work in process | ​ |  | 29,393 | ​ |  | 24,222
Finished goods | ​ |  | 57,973 | ​ |  | 52,823
Total | ​ | $ | 360,801 | ​ | $ | 338,410
​

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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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