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SCHEDULE II -VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2022
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS |
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS | SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the years ended
​ | ​ | December 31, 2022, 2021 and 2020
​ | ​ | Balance at | ​ | Charged to | ​ | ​ | ​ | Balance
​ | ​ | Beginning | ​ | Costs and | ​ | Net (Deductions) | ​ | at End of
(in thousands) | ​ | of Period | ​ | Expenses | ​ | Recoveries | ​ | Period
Year ended December 31, 2022 | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Credit loss allowance for accounts receivable | ​ | $ | 6,765 | ​ | $ | 2,029 | ​ | $ | (1,716) | (1) | $ | 7,078
Deferred tax asset valuation allowance | ​ | $ | 865 | ​ | $ | — | ​ | $ | 125 | (2) | $ | 990
Reserve for obsolete or slow moving inventory | ​ | $ | 13,236 | ​ | $ | 4,080 | ​ | $ | (1,942) | (3) | $ | 15,374
Year ended December 31, 2021 | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |
Credit loss allowance for accounts receivable | ​ | $ | 4,815 | ​ | $ | 4,019 | ​ | $ | (2,069) | (1) | $ | 6,765
Deferred tax asset valuation allowance | ​ | $ | 490 | ​ | $ | — | ​ | $ | 375 | (2) | $ | 865
Reserve for obsolete or slow moving inventory | ​ | $ | 13,829 | ​ | $ | 5,016 | ​ | $ | (5,609) | (3) | $ | 13,236
Year ended December 31, 2020 | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |
Credit loss allowance for accounts receivable | ​ | $ | 5,181 | ​ | $ | 342 | ​ | $ | (708) | (1) | $ | 4,815
Deferred tax asset valuation allowance | ​ | $ | 471 | ​ | $ | — | ​ | $ | 19 | (2) | $ | 490
Reserve for obsolete or slow moving inventory | ​ | $ | 10,467 | ​ | $ | 5,826 | ​ | $ | (2,464) | (3) | $ | 13,829
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(1) | Net (deductions) recoveries in the credit loss allowance principally reflect the write-off of previously reserved accounts net of recoveries.
(2) | The valuation allowance for deferred tax assets is increased or decreased each year to reflect the state and foreign net operating losses and capital losses that management believes will not be utilized before they expire.
(3) | Net (deductions) recoveries in the reserve for obsolete or slow moving inventory principally reflect the write-off and/ or disposal of previously reserved inventory.

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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 https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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