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Consolidated Statements of Stockholders' Equity (Unaudited) - 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, 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) 7,000          
Stock option exercises $ 0 19 0 0 0 19
Stock purchase plan (in shares) 64,000          
Stock purchase plan $ 0 167 0 0 0 167
Vesting of restricted stock units (in shares) 514,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (105,000)          
Shares withheld for taxes $ 0 (262) 0 0 0 (262)
Stock compensation expense 0 1,562 0 0 0 1,562
Net loss 0 0 (6,097) 0 0 (6,097)
Other comprehensive income (loss) $ 0 0 0 (1,015) 0 (1,015)
Balance (in shares) at Jun. 30, 2020 46,414,000          
Balance at Jun. 30, 2020 $ 438 230,675 (130,673) (13,704) (10,668) 76,068
Balance (in shares) at Mar. 31, 2020 46,121,000          
Balance at Mar. 31, 2020 $ 438 229,740 (129,092) (14,409) (10,668) 76,009
Stock option exercises (in shares) 7,000          
Stock option exercises $ 0 19 0 0 0 19
Stock purchase plan (in shares) 64,000          
Stock purchase plan $ 0 167 0 0 0 167
Vesting of restricted stock units (in shares) 246,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (24,000)          
Shares withheld for taxes $ 0 (20) 0 0 0 (20)
Stock compensation expense 0 769 0 0 0 769
Net loss 0 0 (1,581) 0 0 (1,581)
Other comprehensive income (loss) $ 0 0 0 705 0 705
Balance (in shares) at Jun. 30, 2020 46,414,000          
Balance at Jun. 30, 2020 $ 438 230,675 (130,673) (13,704) (10,668) 76,068
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
Retirement of treasury stock (in shares) (7,746,000)          
Retirement of treasury stock $ 0 (10,668) 0 0 10,668 $ 0
Stock option exercises (in shares) 497,000         496,792
Stock option exercises $ 7 2,550 0 0 0 $ 2,557
Stock purchase plan (in shares) 56,000          
Stock purchase plan $ 0 202 0 0 0 202
Vesting of restricted stock units (in shares) 703,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (177,000)          
Shares withheld for taxes $ 0 (990) 0 0 0 (990)
Stock compensation expense 0 2,132 0 0 0 2,132
Net loss 0 0 (1,079) 0 0 (1,079)
Other comprehensive income (loss) $ 0 0 0 (802) 0 (802)
Balance (in shares) at Jun. 30, 2021 40,486,000          
Balance at Jun. 30, 2021 $ 451 225,583 (133,465) (13,868) 0 78,701
Balance (in shares) at Mar. 31, 2021 47,696,000          
Balance at Mar. 31, 2021 $ 448 234,781 (133,055) (14,391) (10,668) 77,115
Retirement of treasury stock (in shares) (7,746,000)          
Retirement of treasury stock $ 0 (10,668) 0 0 10,668 0
Stock option exercises (in shares) 186,000          
Stock option exercises $ 3 630 0 0 0 633
Stock purchase plan (in shares) 56,000          
Stock purchase plan $ 0 202 0 0 0 202
Vesting of restricted stock units (in shares) 363,000          
Vesting of restricted stock units $ 0 0 0 0 0 0
Shares withheld for taxes (in shares) (69,000)          
Shares withheld for taxes $ 0 (526) 0 0 0 (526)
Stock compensation expense 0 1,164 0 0 0 1,164
Net loss 0 0 (410) 0 0 (410)
Other comprehensive income (loss) $ 0 0 0 523 0 523
Balance (in shares) at Jun. 30, 2021 40,486,000          
Balance at Jun. 30, 2021 $ 451 $ 225,583 $ (133,465) $ (13,868) $ 0 $ 78,701