Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands |
Total |
Common Stock
Class A common stock
|
Common Stock
Class B common stock
|
Additional Paid-in Capital |
Accumulated Other Comprehensive Loss |
Accumulated Deficit |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Cumulative-effect adjustment resulting from adoption of ASU 2014-09 (Note 2) |
$ 2,964
|
|
|
|
|
$ 2,964
|
| Beginning balance (in shares) at Dec. 31, 2017 |
|
14,879
|
19,102
|
|
|
|
| Beginning balance at Dec. 31, 2017 |
$ 85,079
|
$ 1
|
$ 3
|
$ 152,531
|
$ (209)
|
(67,247)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Exercise of stock options (in shares) |
98
|
98
|
|
|
|
|
| Exercise of stock options |
$ 470
|
|
|
470
|
|
|
| Stock-based compensation |
1,495
|
|
|
1,495
|
|
|
| Vesting of restricted stock units, net of shares withheld for taxes (in shares) |
|
68
|
|
|
|
|
| Vesting of restricted stock units, net of shares withheld for taxes |
(1,650)
|
|
|
(1,650)
|
|
|
| Vesting of early exercised shares |
9
|
|
|
9
|
|
|
| Conversion of Class B stock to Class A stock (in shares) |
|
47
|
(47)
|
|
|
|
| Conversion of Class B stock to Class A stock |
0
|
|
|
|
|
|
| Other comprehensive loss |
(148)
|
|
|
|
(148)
|
|
| Net income |
4,320
|
|
|
|
|
4,320
|
| Ending balance (in shares) at Mar. 31, 2018 |
|
15,092
|
19,055
|
|
|
|
| Ending balance at Mar. 31, 2018 |
$ 92,539
|
$ 1
|
$ 3
|
$ 152,855
|
$ (357)
|
$ (59,963)
|