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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock and Paid-in Capital | Common Stock | Unamortized Cost of Equity Awards | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Total
--- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2017 | $ 31,051 | $ 34,473 | $ (3,422) | $ 61,882 | $ (5,586) | $ 87,347
Balances (in shares) at Dec. 31, 2017 |  | 9,427 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Stock transactions under employee benefit stock plans | 849 | $ 849 |  |  |  | 849
Stock transactions under employee benefit stock plans (in shares) |  | 26 |  |  |  |
Issuance of restricted stock, net of forfeitures |  | $ 1,582 | (1,582) |  |  |
Issuance of restricted stock, net of forfeitures (in shares) |  | 30 |  |  |  |
Stock-based compensation expense | 460 |  | 460 |  |  | 460
Shares withheld for payment of employee payroll taxes | (34) | $ (34) |  |  |  | (34)
Shares withheld for payment of employee payroll taxes (in shares) |  | (1) |  |  |  |
Foreign currency translation adjustments |  |  |  |  | 1,687 | 1,687
Accumulated loss on derivatives |  |  |  |  | 604 | 604
Net income |  |  |  | 4,198 |  | 4,198
Balances at Mar. 31, 2018 | 32,326 | $ 36,870 | (4,544) | 66,080 | (3,295) | 95,111
Balances (in shares) at Mar. 31, 2018 |  | 9,482 |  |  |  |
Balances at Dec. 31, 2017 | 31,051 | $ 34,473 | (3,422) | 61,882 | (5,586) | 87,347
Balances (in shares) at Dec. 31, 2017 |  | 9,427 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Foreign currency translation adjustments |  |  |  |  |  | (1,845)
Net income |  |  |  |  |  | 8,429
Balances at Jun. 30, 2018 | 32,315 | $ 36,628 | (4,313) | 69,790 | (6,580) | 95,525
Balances (in shares) at Jun. 30, 2018 |  | 9,475 |  |  |  |
Balances at Mar. 31, 2018 | 32,326 | $ 36,870 | (4,544) | 66,080 | (3,295) | 95,111
Balances (in shares) at Mar. 31, 2018 |  | 9,482 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Stock transactions under employee benefit stock plans | 2 | $ 2 |  |  |  | 2
Stock transactions under employee benefit stock plans (in shares) |  | 1 |  |  |  |
Issuance of restricted stock, net of forfeitures |  | $ 311 | (311) |  |  |
Issuance of restricted stock, net of forfeitures (in shares) |  | 7 |  |  |  |
Stock-based compensation expense | 542 |  | 542 |  |  | 542
Shares withheld for payment of employee payroll taxes | (555) | $ (555) |  |  |  | (555)
Shares withheld for payment of employee payroll taxes (in shares) |  | (15) |  |  |  |
Foreign currency translation adjustments |  |  |  |  | (3,532) | (3,532)
Accumulated loss on derivatives |  |  |  |  | 247 | 247
Net income |  |  |  | 4,231 |  | 4,231
Dividends to stockholders |  |  |  | (521) |  | (521)
Balances at Jun. 30, 2018 | 32,315 | $ 36,628 | (4,313) | 69,790 | (6,580) | 95,525
Balances (in shares) at Jun. 30, 2018 |  | 9,475 |  |  |  |
Balances at Dec. 31, 2018 | 33,613 | $ 36,779 | (3,166) | 76,718 | (8,518) | $ 101,813
Balances (in shares) at Dec. 31, 2018 |  | 9,485 |  |  |  | 9,485
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Stock transactions under employee benefit stock plans | 1,088 | $ 1,088 |  |  |  | $ 1,088
Stock transactions under employee benefit stock plans (in shares) |  | 27 |  |  |  |
Issuance of restricted stock, net of forfeitures | 330 | $ 4,059 | (3,729) |  |  | 330
Issuance of restricted stock, net of forfeitures (in shares) |  | 96 |  |  |  |
Stock-based compensation expense | 596 |  | 596 |  |  | 596
Shares withheld for payment of employee payroll taxes | (63) | $ (63) |  |  |  | (63)
Shares withheld for payment of employee payroll taxes (in shares) |  | (1) |  |  |  |
Foreign currency translation adjustments |  |  |  |  | (887) | (887)
Accumulated loss on derivatives |  |  |  |  | (343) | (343)
Tax effect of derivative transactions |  |  |  |  | 81 | 81
Net income |  |  |  | 4,470 |  | 4,470
Dividends to stockholders |  |  |  | (287) |  | (287)
Balances at Mar. 31, 2019 | 35,564 | $ 41,863 | (6,299) | 80,901 | (9,667) | 106,798
Balances (in shares) at Mar. 31, 2019 |  | 9,607 |  |  |  |
Balances at Dec. 31, 2018 | 33,613 | $ 36,779 | (3,166) | 76,718 | (8,518) | $ 101,813
Balances (in shares) at Dec. 31, 2018 |  | 9,485 |  |  |  | 9,485
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Foreign currency translation adjustments |  |  |  |  |  | $ (339)
Net income |  |  |  |  |  | 8,915
Balances at Jun. 30, 2019 | 35,697 | $ 41,632 | (5,935) | 85,058 | (9,555) | $ 111,200
Balances (in shares) at Jun. 30, 2019 |  | 9,600 |  |  |  | 9,600
Balances at Mar. 31, 2019 | 35,564 | $ 41,863 | (6,299) | 80,901 | (9,667) | $ 106,798
Balances (in shares) at Mar. 31, 2019 |  | 9,607 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Issuance of restricted stock, net of forfeitures |  | $ 416 | (416) |  |  |
Issuance of restricted stock, net of forfeitures (in shares) |  | 11 |  |  |  |
Stock-based compensation expense | 780 |  | 780 |  |  | 780
Shares withheld for payment of employee payroll taxes | (647) | $ (647) |  |  |  | (647)
Shares withheld for payment of employee payroll taxes (in shares) |  | (18) |  |  |  |
Foreign currency translation adjustments |  |  |  |  | 548 | 548
Accumulated loss on derivatives |  |  |  |  | (564) | (564)
Tax effect of derivative transactions |  |  |  |  | 128 | 128
Net income |  |  |  | 4,445 |  | 4,445
Dividends to stockholders |  |  |  | (288) |  | (288)
Balances at Jun. 30, 2019 | $ 35,697 | $ 41,632 | $ (5,935) | $ 85,058 | $ (9,555) | $ 111,200
Balances (in shares) at Jun. 30, 2019 |  | 9,600 |  |  |  | 9,600

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