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v3.21.1

Schedule II Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2020
Notes to Financial Statements |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | a. Valuation and Qualifying Accounts for the years ended December 31, 2020 and December 31, 2019.
|  | 2020 |  |  | 2019 |
Bad debt expense |  |  | 320,270 |  |  |  | 25,044 |
Reserve for obsolete inventory |  |  | 266,021 |  |  |  | 127,293 |
|  | Balance Beginning of Year |  |  | Charges to Costs and Expenses |  |  | Deductions (1) |  |  | Balance End of Year |
Year Ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for inventory obsolescence |  | $ | 665,308 |  |  | $ | 266,021 |  |  | $ | (207,380 | ) |  | $ | 723,949 |
Allowance for doubtful accounts |  |  | 612,434 |  |  |  | 320,270 |  |  |  | (434,660 | ) |  |  | 498,044 |
Totals |  | $ | 1,277,742 |  |  | $ | 586,291 |  |  | $ | (642,040 | ) |  | $ | 1,221,993 |
Year Ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for inventory obsolescence |  | $ | 1,111,795 |  |  | $ | 127,293 |  |  | $ | (573,780 | ) |  | $ | 665,308 |
Allowance for doubtful accounts |  |  | 971,772 |  |  |  | 25,044 |  |  |  | (384,382 | ) |  |  | 612,434 |
Totals |  | $ | 2,083,567 |  |  | $ | 152,337 |  |  | $ | (958,162 | ) |  | $ | 1,277,742 |
|  | 2020 |  |  | 2019 |
Allowance for doubtful accounts at the beginning of the period |  | $ | 612,434 |  |  | $ | 971,772 |
Bad debt expense |  |  | 320,270 |  |  |  | 25,044 |
Receivables written off during the periods |  |  | (484,265 | ) |  |  | (362,244 | )
Effect of currency translation |  |  | 49,605 |  |  |  | (22,138 | )
Allowance for doubtful accounts at the end of the period |  | $ | 498,044 |  |  | $ | 612,434 |
(1) Includes write-offs, the impact of foreign currency exchange rates.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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