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v3.19.1

Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Gain (Loss) [Member] | Accumulated Deficit [Member]
--- | --- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2017 | $ 296,205 | $ 843 | $ (217,355) | $ 621,008 | $ (164) | $ (108,127)
BALANCE, shares at Dec. 31, 2017 |  | 84,280,000 |  |  |  |
BALANCE, shares at Dec. 31, 2017 |  |  | (15,162,000) |  |  |
Net income | 17,502 |  |  |  |  | 17,502
Foreign currency translation | 86 |  |  |  | 86 |
Unrealized gain (loss) on investments | (218) |  |  |  | (218) |
Share-based compensation expense | 1,501 |  |  | 1,501 |  |
Common stock issued | (2,105) | $ 7 | $ (2,981) | 869 |  |
Common stock issued, shares |  | 708,000 | (215,000) |  |  |
BALANCE at Mar. 31, 2018 | 312,971 | $ 850 | $ (220,336) | 623,378 | (296) | (90,625)
BALANCE, shares at Mar. 31, 2018 |  | 84,988,000 |  |  |  |
BALANCE, shares at Mar. 31, 2018 |  |  | (15,377,000) |  |  |
BALANCE at Dec. 31, 2018 | $ 355,203 | $ 852 | $ (220,700) | 628,295 | (298) | (52,946)
BALANCE, shares at Dec. 31, 2018 | 85,173,686 | 85,174,000 |  |  |  |
BALANCE, shares at Dec. 31, 2018 | (15,400,776) |  | (15,401,000) |  |  |
Net income | $ 24,791 |  |  |  |  | 24,791
Foreign currency translation | (52) |  |  |  | (52) |
Unrealized gain (loss) on investments | 399 |  |  |  | 399 |
Adjustment for change in accounting method | 1,035 |  |  |  |  | 1,035
Share-based compensation expense | 1,369 |  |  | 1,369 |  |
Common stock issued | (2,423) | $ 5 | $ (2,532) | 104 |  |
Common stock issued, shares |  | 485,000 | (155,000) |  |  |
BALANCE at Mar. 31, 2019 | $ 380,322 | $ 857 | $ (223,232) | $ 629,768 | $ 49 | $ (27,120)
BALANCE, shares at Mar. 31, 2019 | 85,658,822 | 85,659,000 |  |  |  |
BALANCE, shares at Mar. 31, 2019 | (15,555,913) |  | (15,556,000) |  |  |

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