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INCOME TAXES: (Details textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |  |
Federal statutory income tax rate (percent) | 21.00% |  |  |
Part of unrecognized tax benefits | $ 808 | $ 867 | $ 825 | $ 922
Increase (decrease) in interest and penalities | 21 | 11 | 9 |
Income tax examination, penalties and interest accrued | $ 85 | $ 64 | $ 53 |

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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 + Details
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