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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock | Additional Paid-In-Capital | Treasury Stock | Accumulated Other Comprehensive Loss | Accumulated Deficit | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 44 | $ 230,134 | $ (3,161) | $ (5,666) | $ (157,814) | $ 63,537
Balance (in shares) at Dec. 31, 2017 | 44,490 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Net income |  |  |  |  | 5,677 | 5,677
Other comprehensive (gain) loss |  |  |  | (1,489) |  | (1,489)
Treasury shares repurchased |  |  | (3,063) |  |  | (3,063)
Proceeds from issuance of ESPP |  | (9) | 833 |  |  | 824
Issuance of treasury shares for RSU vested |  | (5,188) | 5,188 |  |  |
Issuance of common stock for contingent earn-out |  | 1,200 |  |  |  | 1,200
Issuance of common stock for contingent earn-out (in shares) | 290 |  |  |  |  |
Issuance of common stock for RSU vested | $ 1 | (1) |  |  |  |
Issuance of common stock for RSU vested (in shares) | 697 |  |  |  |  |
Stock based compensation |  | 9,862 |  |  |  | 9,862
Balance at Dec. 31, 2018 | $ 45 | 235,998 | (203) | (7,155) | (150,098) | $ 78,587
Balance (in shares) at Dec. 31, 2018 | 45,477 |  |  |  |  | 45,477
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Impact of change in accounting policy |  |  |  |  | 2,039 | $ 2,039
Net income |  |  |  |  | 3,341 | 3,341
Other comprehensive (gain) loss |  |  |  | 17 |  | 17
Treasury shares repurchased |  |  | (3,428) |  |  | (3,428)
Proceeds from issuance of ESPP |  | 485 | 218 |  |  | 703
Proceeds from issuance of ESPP (in shares) | 171 |  |  |  |  |
Issuance of treasury shares |  | (1,362) | 1,362 |  |  |
Issuance of common stock for contingent earn-out | $ 1 | 864 |  |  |  | 865
Issuance of common stock for contingent earn-out (in shares) | 243 |  |  |  |  |
Issuance of common stock for RSU vested | $ 2 | (2) |  |  |  |
Issuance of common stock for RSU vested (in shares) | 2,221 |  |  |  |  |
Stock based compensation |  | 9,589 |  |  |  | 9,589
Balance at Dec. 31, 2019 | $ 48 | $ 245,572 | $ (2,051) | $ (7,138) | $ (146,757) | $ 89,674
Balance (in shares) at Dec. 31, 2019 | 48,112 |  |  |  |  | 48,112

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