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EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Sep. 19, 2016
Stock-based compensation |  |  |  |
Number of shares reserved to be granted under the plan | 2,000,000 |  |  |
Number of shares available for grant | 272,000 |  |  |
Treasury Stock |  |  |  |
Shares Repurchased | 57,115 | 139,784 | 161,500 |
Purchases of common stock | $ 942 | $ 10,546 | $ 6,589 |
Shares repurchased to satisfy tax withholdings and exercise obligations | 33,401 | 33,271 | 32,227 |
Aggregate cost to satisfy tax withholdings and exercise obligations | $ 1,169 | $ 1,713 | $ 1,733 |
Average Repurchase Price (in dollars per share) | $ 35.01 | $ 51.49 | $ 53.78 |
Stock-based compensation, additional disclosures |  |  |  |
Cash proceeds received upon exercise of options |  | $ 383 |  |
2016 Repurchase Plan |  |  |  |
Treasury Stock |  |  |  |
Authorized amount |  |  |  | $ 50,000
Shares Repurchased | 23,714 | 244,798 | 129,273 |
Purchases of common stock | $ 941,523 | $ 10,546 | $ 6,589 |
Average Repurchase Price (in dollars per share) | $ 39.70 | $ 43.08 | $ 50.97 |
Value of shares available for repurchase | $ 19,500 |  |  |
Stock options |  |  |  |
Stock-based compensation |  |  |  |
Expiration term | 10 years |  |  |
Vesting period | 4 years |  |  |
Number of Options |  |  |  |
Outstanding at the beginning of the period (in shares) | 5,000 | 15,000 |  |
Granted (in shares) | 0 |  |  |
Expired (in shares) | (5,000) |  |  |
Exercised (in shares) |  | (10,000) |  |
Outstanding at the end of the period (in shares) |  | 5,000 | 15,000 |
Vested and expected to vest at the end of the period (in shares) |  | 5,000 |  |
Weighted Avg. Exercise Price |  |  |  |
Outstanding at the beginning of the period (in dollars per share) | $ 71.43 | $ 49.34 |  |
Exercised (in dollars per share) |  | 38.30 |  |
Outstanding at the end of the period (in dollars per share) |  | 71.43 | $ 49.34 |
Vested and expected to vest at the end of the period (in dollars per share) |  | $ 71.43 |  |
Weighted Average Remaining Contractual Term |  |  |  |
Outstanding |  | 3 years 8 months 12 days |  |
Vested and expected to vest |  | 3 years 8 months 12 days |  |
Stock-based compensation, additional disclosures |  |  |  |
Aggregate intrinsic value of options exercised |  | $ 84 |  |
Cash proceeds received upon exercise of options |  | 383 |  |
Restricted Stock |  |  |  |
Stock-based compensation |  |  |  |
Vesting period | 4 years |  |  |
Unamortized stock based compensation |  |  |  |
Unamortized stock based compensation | $ 7,900 |  |  |
Weighted-average period for recognition of unamortized stock-based compensation cost | 2 years 6 months |  |  |
Stock compensation expense |  |  |  |
Stock compensation expense | $ 6,800 | $ 5,400 | $ 5,600 |
Shares |  |  |  |
Unvested at the beginning of the period (in shares) | 228,068 | 223,623 |  |
Granted (in shares) | 152,430 | 117,794 |  |
Forfeited (in shares) | (12,486) | (14,213) |  |
Vested and issued (in shares) | (107,515) | (99,136) |  |
Unvested at the end of the period (in shares) | 260,497 | 228,068 | 223,623 |
Weighted Avg. Fair Value |  |  |  |
Unvested at the beginning of the period (in dollars per share) | $ 51.05 | $ 54.42 |  |
Granted (in dollars per share) | 38.59 | 48.76 |  |
Forfeited (in dollars per share) | 46.52 | 50.86 |  |
Vested and issued (in dollars per share) | 51.33 | 55.95 |  |
Unvested at the end of the period (in dollars per share) | $ 43.86 | $ 51.05 | $ 54.42 |
Restricted Stock | Management |  |  |  |
Stock compensation expense |  |  |  |
Stock compensation expense | $ 600 | $ 400 | $ 300 |
Performance Stock |  |  |  |
Unamortized stock based compensation |  |  |  |
Unamortized stock based compensation | $ 3,000 |  |  |
Weighted-average period for recognition of unamortized stock-based compensation cost | 1 year 10 months 24 days |  |  |
Stock compensation expense |  |  |  |
Stock compensation expense | $ 1,500 | $ 700 | $ 0 |
Shares |  |  |  |
Unvested at the beginning of the period (in shares) | 43,000 |  |  |
Granted (in shares) | 56,450 | 43,000 |  |
Unvested at the end of the period (in shares) | 99,450 | 43,000 |  |
Weighted Avg. Fair Value |  |  |  |
Unvested at the beginning of the period (in dollars per share) | $ 59.77 |  |  |
Granted (in dollars per share) | 47.03 | $ 59.77 |  |
Unvested at the end of the period (in dollars per share) | $ 52.54 | $ 59.77 |  |

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- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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