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Consolidated Statements Of Shareholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive (Loss) Income [Member]
Treasury Stock [Member]
Total
Balance at Dec. 31, 2018 $ 385 $ 260,361 $ 34,984 $ (6,072) $ (14,591) $ 275,067
Balance, shares at Dec. 31, 2018 38,463,000       (1,484,000)  
Net (loss) income 1,720 1,720
Other comprehensive (loss) income (2,517) (2,517)
Equity compensation $ 2 9,409 9,411
Equity compensation, shares 254,000        
Exercise of options $ 3 3,292 3,295
Exercise of options, shares 334,000        
Employee stock purchase plan $ 1 1,462 $ 1,463
Employee stock purchase plan, shares 61,000       61,000
Redemption and repurchase of stock to cover tax withholdings $ (1) (2,742) $ (2,743)
Redemption and repurchase of stock to cover tax withholdings, shares (94,000)          
Balance at Dec. 31, 2019 $ 390 271,782 36,704 (8,589) $ (14,591) 285,696
Balance, shares at Dec. 31, 2019 39,018,000       (1,484,000)  
Net (loss) income (16,682) (16,682)
Other comprehensive (loss) income 15,332 15,332
Stock issued for the Ascyrus Acquisition $ 10 19,990 20,000
Stock issued for the Ascyrus Acquisition, shares 992,000          
Equity component of the convertible note issuance 16,426 16,426
Equity compensation $ 3 7,501 7,504
Equity compensation, shares 296,000          
Exercise of options $ 1 927 $ (57) 871
Exercise of options, shares 89,000       (3,000)  
Employee stock purchase plan $ 1 1,560 $ 1,561
Employee stock purchase plan, shares 83,000       83,000
Redemption and repurchase of stock to cover tax withholdings $ (1) (1,994) $ (1,995)
Redemption and repurchase of stock to cover tax withholdings, shares (84,000)        
Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2020 (16,426) (3,213) (19,639)
Balance at Dec. 31, 2020 $ 404 316,192 20,022 6,743 $ (14,648) 328,713
Balance, shares at Dec. 31, 2020 40,394,000       (1,487,000)  
Net (loss) income (14,834) (14,834)
Other comprehensive (loss) income (16,630) (16,630)
Stock issued for the Ascyrus Acquisition $ 6 9,994 10,000
Stock issued for the Ascyrus Acquisition, shares 553,000          
Equity compensation $ 3 11,274 11,277
Equity compensation, shares 260,000        
Exercise of options $ 1 2,145 2,146
Exercise of options, shares 179,000        
Employee stock purchase plan $ 1 1,608 $ 1,609
Employee stock purchase plan, shares 87,000       87,000
Redemption and repurchase of stock to cover tax withholdings $ (1) (1,913) $ (1,914)
Redemption and repurchase of stock to cover tax withholdings, shares (76,000)        
Balance at Dec. 31, 2021 $ 414 $ 322,874 $ 1,975 $ (9,887) $ (14,648) $ 300,728
Balance, shares at Dec. 31, 2021 41,397,000       (1,487,000)