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Consolidated Statements of Shareholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Divestiture [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Divestiture [Member]
Treasury Stock [Member]
Beginning Balance at Dec. 31, 2016 $ 190,082   $ 343 $ 244,878 $ (41,741) $ (13,042)   $ (356)
Beginning Balance, Shares at Dec. 31, 2016     34,300         (138)
Net income (loss) (3,029)       (3,029)      
Cumulative effect adjustment | ASU 2016-09 [Member] 66     177 (111)      
Common stock dividends (7,792)       (7,792)      
Exercise of stock options and dividend reinvestment issuances $ 1,295   $ 3 1,292        
Exercise of stock options and dividend reinvestment issuances, Shares 292   291          
Restricted stock units issued $ (135)   $ (1) (136)        
Restricted stock units issued, Shares     92          
Share based compensation earned 1,959     1,959        
Share based compensation earned, Shares     25          
Adjustment for minimum pension liability, net of tax (78)         (78)    
Interest rate swap 180         180    
Translation income (loss) 4,021         4,021    
Ending Balance at Dec. 31, 2017 186,569   $ 347 248,170 (52,673) (8,919)   $ (356)
Ending Balance, Shares at Dec. 31, 2017     34,708         (138)
Translation (loss) gain, beginning balance at Dec. 31, 2016 (8,271)              
Translation (loss) gain, ending balance at Dec. 31, 2017 (4,250)              
Interest rate swap adjustment beginning balance at Dec. 31, 2016 312              
Interest rate swap adjustment ending balance at Dec. 31, 2017 492              
Minimum pension liability adjustment beginning balance at Dec. 31, 2016 (5,083)              
Minimum pension liability adjustment, ending balance at Dec. 31, 2017 (5,161)              
Accumulated other comprehensive loss, beginning balance at Dec. 31, 2016 (13,042)              
Accumulated other comprehensive loss, activity 4,123              
Accumulated other comprehensive loss, ending balance at Dec. 31, 2017 (8,919)              
Net income (loss) (7,121)       (7,121)      
Cumulative effect adjustment | ASU 2018-02 [Member] (30)       1,037 (1,067)    
Cumulative effect adjustment | ASU 2014-09 [Member] (622)       (622)      
Cumulative translation adjustment for divestiture   $ 375         $ 375  
Exercise of stock options and dividend reinvestment issuances $ 89     89        
Exercise of stock options and dividend reinvestment issuances, Shares 16   16          
Restricted stock units issued $ (253)   $ 2 (207) 48      
Restricted stock units issued, Shares     192          
Share based compensation earned 3,357     3,357        
Share based compensation earned, Shares     38          
Adjustment for minimum pension liability, net of tax (22)         (22)    
Interest rate swap 76         76    
Translation income (loss) (3,858)         (3,858)    
Ending Balance at Dec. 31, 2018 178,560   $ 349 251,409 (59,427) (13,415)   $ (356)
Ending Balance, Shares at Dec. 31, 2018     34,954         (138)
Translation (loss) gain, ending balance at Dec. 31, 2018 (7,733)              
Interest rate swap adjustment ending balance at Dec. 31, 2018 563              
Cumulative effect adjustment for interest rate swap | ASU 2018-02 [Member] (5)              
Minimum pension liability adjustment, ending balance at Dec. 31, 2018 (6,245)              
Minimum pension liability adjustment, cumulative translation adjustment | ASU 2018-02 [Member] (1,062)              
Accumulated other comprehensive loss, activity (3,804)              
Accumulated other comprehensive loss, ending balance at Dec. 31, 2018 (13,415)              
Accumulated other comprehensive loss, cumulative translation adjustment   $ 375            
Accumulated other comprehensive loss, cumulative translation adjustment | ASU 2018-02 [Member] (1,067)              
Net income (loss) 17,707       17,707      
Cumulative effect adjustment | Accounting Standards Update 2017-12         (11) 11    
Cumulative effect adjustment | Accounting Standards Update 2016-02 $ (4,590)       (4,590)      
Exercise of stock options and dividend reinvestment issuances, Shares 66   31          
Restricted stock units issued $ (447)   $ 3 (427) 23      
Restricted stock units issued, Shares     255          
Share based compensation earned 2,888   $ 1 2,887        
Share based compensation earned, Shares     35          
Adjustment for minimum pension liability, net of tax (184)         (184)    
Interest rate swap (574)         (574)    
Translation income (loss) (343)         (343)    
Ending Balance at Dec. 31, 2019 193,017   $ 353 $ 253,869 $ (46,344) $ (14,505)   $ (356)
Ending Balance, Shares at Dec. 31, 2019     35,275         (138)
Translation (loss) gain, ending balance at Dec. 31, 2019 (8,076)              
Cumulative effect adjustment for interest rate swap | Accounting Standards Update 2017-12 11              
Minimum pension liability adjustment, ending balance at Dec. 31, 2019 (6,429)              
Accumulated other comprehensive loss, activity (1,101)              
Accumulated other comprehensive loss, ending balance at Dec. 31, 2019 (14,505)              
Accumulated other comprehensive loss, cumulative translation adjustment | Accounting Standards Update 2017-12 $ 11