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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Treasury Stock [Member]
Total
Balance (in shares) at Dec. 31, 2018 45,124,000          
Balance at Dec. 31, 2018 $ 436 $ 226,377 $ (119,889) $ (13,532) $ (10,668) $ 82,724
Stock option exercises (in shares) 4,000         3,750
Stock option exercises $ 0 11 0 0 0 $ 11
Shares issued under stock purchase plan (in shares) 191,000         190,642
Shares issued under stock purchase plan $ 2 323 0 0 0 $ 325
Vesting of restricted stock units (in shares) 818,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (203,000)          
Shares withheld for taxes $ 0 (556) 0 0 0 (556)
Stock compensation expense 0 3,034 0 0 0 3,034
Net loss 0 0 (4,687) 0 0 (4,687)
Other comprehensive income $ 0 0 0 843 0 843
Balance (in shares) at Dec. 31, 2019 45,934,000          
Balance at Dec. 31, 2019 $ 438 229,189 (124,576) (12,689) (10,668) $ 81,694
Stock option exercises (in shares) 254,000         253,853
Stock option exercises $ 4 318 0 0 0 $ 322
Shares issued under stock purchase plan (in shares) 126,000         126,255
Shares issued under stock purchase plan $ 2 345 0 0 0 $ 347
Vesting of restricted stock units (in shares) 1,171,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (332,000)          
Shares withheld for taxes $ 0 (1,142) 0 0 0 (1,142)
Stock compensation expense 0 3,647 0 0 0 3,647
Net loss 0 0 (7,810) 0 0 (7,810)
Other comprehensive income $ 0 0 0 (377) 0 (377)
Balance (in shares) at Dec. 31, 2020 47,153,000          
Balance at Dec. 31, 2020 $ 444 $ 232,357 $ (132,386) $ (13,066) $ (10,668) $ 76,681