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STOCKHOLDERS' EQUITY AND EMPLOYEE STOCK PLANS (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Total Stock-based Compensation Expense The following table sets forth the total stock-based compensation expense included in the Consolidated Statements of Operations for the years ended December 31: 
 202220212020
Cost of products sold$506 $604 $652 
General and administrative expenses8,304 5,360 4,408 
Selling and distribution expenses1,248 610 615 
Stock-based compensation expense10,058 6,574 5,675 
Income tax benefit(1,716)(1,342)(1,313)
Stock-based compensation expense, net of income taxes8,342 5,232 4,362 
Earnings per share impact   
Basic$0.43 $0.30 $0.29 
Diluted$0.43 $0.30 $0.29 
Summary of the Activity of Nonvested Shares of Restricted Stock
A summary of the activity of our unvested RSAs issued under the 2016 Plan is as follows:
2016 Plan
SharesWeighted Average
Grant Date
Fair Value
Balance at December 31, 2020249,565 $27.81 
Granted120,872 50.48 
Vested(140,537)26.96 
Forfeited(250)45.47 
Balance at December 31, 2021229,650 $40.26 
Granted196,955 26.43 
Vested(151,828)36.01 
Forfeited(1,000)29.77 
Balance at December 31, 2022273,777 $32.71 
Summary of the Activity of Nonvested Restricted Stock Units A summary of the activity of our unvested RSUs issued under the 2016 Plan is as follows:
2016 Plan
SharesWeighted Average
Grant Date
Fair Value
Balance at December 31, 202071,440 $31.65 
Granted12,989 67.78 
Vested(32,131)29.95 
Forfeited— — 
Balance at December 31, 202152,298 $41.67 
Granted27,397 28.59 
Vested(35,101)34.29 
Forfeited(73)25.81 
Balance at December 31, 202244,521 $39.47 
Schedule of the Activity of Nonvested Performance Stock Units A summary of the activity of our unvested PSUs issued under the 2016 Plan is as follows:
SharesWeighted Average
Grant Date
Fair Value
Balance at December 31, 202056,110 $57.63 
Granted44,861 59.65 
Vested(40,000)26.47 
Balance at December 31, 202160,971 $79.56 
Granted84,165 31.45 
Vested(404)48.23 
Balance at December 31, 2022144,732 $51.67 
Schedule of Total Unrecognized Stock-based Compensation Related to Unvested Awards As of December 31, 2022, total unrecognized stock-based compensation related to unvested awards was as follows:
Unrecognized stock compensationWeighted-average recognition period
Unvested RSAs$5,275 1.4 years
Unvested RSUs$930 1.5 years
Unvested PSUs$2,485 1.1 years