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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] | inTEST CORPORATION SCHEDULE II -- VALUATION AND QUALIFYING ACCOUNTS (in thousands)
|  | Balance at Beginning of Period |  |  | Expense (Recovery) |  |  | Deductions |  |  | Foreign Currency Translation Adjustments |  |  | Balance at End of Period |
Year Ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 211 |  |  | $ | - |  |  | $ | - |  |  | $ | 1 |  |  | $ | 212 |
Warranty reserve |  |  | 334 |  |  |  | 32 |  |  |  | (131 | ) |  |  | - |  |  |  | 235 |
Year Ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 233 |  |  | $ | 3 |  |  | $ | (25 | ) |  |  | - |  |  | $ | 211 |
Warranty reserve |  |  | 346 |  |  |  | 243 |  |  |  | (255 | ) |  |  | - |  |  |  | 334 |

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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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