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ACCRUED LIABILITIES | 9 Months Ended
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Sep. 30, 2021
ACCRUED LIABILITIES |
ACCRUED LIABILITIES | 8. ACCRUED LIABILITIES Accrued liabilities consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ |  | 2021 |  | 2020
Compensation and fringe benefits | ​ | $ | 14,104 | ​ | $ | 11,184
Warranty reserve | ​ |  | 1,963 | ​ |  | 1,571
Income taxes payable | ​ | ​ | 2,127 | ​ | ​ | 1,459
Right of use liabilities | ​ | ​ | 4,347 | ​ | ​ | 4,666
Other accrued expenses | ​ |  | 4,774 | ​ |  | 5,982
​ | ​ | $ | 27,315 | ​ | $ | 24,862
​

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- References No definition available. + Details
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