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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, 2017 42,764,000          
Balance at Dec. 31, 2017 $ 419 $ 218,792 $ (116,967) $ (10,676) $ (10,668) $ 80,900
Stock option exercises (in shares) 1,696,000         3,750
Stock option exercises $ 17 5,149 $ 5,166
Shares issued under employee stock purchase plan (in shares) 89,000         89,308
Shares issued under employee stock purchase plan $ 1 159 $ 160
Vesting of restricted stock units (in shares) 915,000          
Vesting of restricted stock units
Shares withheld for taxes (in shares) (340,000)          
Shares withheld for taxes $ (1) (767) (768)
Stock compensation expense 3,044 3,044
Net (loss) income (2,922) (2,922)
Other comprehensive loss (2,856) (2,856)
Net loss (2,922) (2,922)
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          
Stock option exercises 11 $ 11
Shares issued under employee stock purchase plan (in shares) 191,000         190,642
Shares issued under employee stock purchase plan $ 2 323 $ 325
Vesting of restricted stock units (in shares) 818,000          
Vesting of restricted stock units
Shares withheld for taxes (in shares) (203,000)          
Shares withheld for taxes (556) (556)
Stock compensation expense 3,034 3,034
Net (loss) income (4,687) (4,687)
Other comprehensive loss 843 843
Net loss (4,687) (4,687)
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