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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2021
SIGNIFICANT ACCOUNTING POLICIES |
Schedule of analysis of warranty accruals | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2021 |  | 2020
Balance at beginning of year | ​ | $ | 5,030 | ​ | $ | 5,410
Less: Payments made during the year | ​ |  | (4,091) | ​ |  | (3,225)
Add: Warranty provision for the current year | ​ |  | 3,817 | ​ |  | 3,095
Changes to warranty provision for prior years | ​ |  | (115) | ​ |  | (250)
Balance at end of year | ​ | $ | 4,641 | ​ | $ | 5,030
Schedule of reconciliation of weighted average shares outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(In thousands) |  | 2021 |  | 2020 |  | 2019
Net income available for stockholders: | ​ | $ | 29,026 | ​ | $ | 19,444 | ​ | $ | 28,239
Less: Adjustments for earnings attributable to participating securities | ​ |  | (566) | ​ |  | (416) | ​ |  | (669)
Net income used in calculating earnings per share | ​ | $ | 28,460 | ​ | $ | 19,028 | ​ | $ | 27,570
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares outstanding (including participating securities) | ​ |  | 33,984 | ​ |  | 33,926 | ​ |  | 34,061
Adjustment for participating securities | ​ |  | (672) | ​ |  | (734) | ​ |  | (831)
Shares used in calculating basic and diluted earnings per share | ​ |  | 33,312 | ​ |  | 33,192 | ​ |  | 33,230

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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