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Stock-Based Awards (Tables) | 6 Months Ended
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Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Unrecognized Stock-Based Compensation Expense and Average Remaining Vesting Period | A summary of unrecognized stock-based compensation expense and average remaining vesting period is as follows:
|  | June 30, 2017 |
|  | Unrecognized Stock- Based Compensation |  |  | Average Remaining Vesting Period |
Employees and directors |  | $ | 20,999 |  |  |  | 1.80 |
Summary of Stock Options, Restricted Stock and Restricted Stock Unit Activity | A summary of stock options, restricted stock and restricted stock unit activity for the three months ended June 30, 2017 is as follows:
|  | Stock Options |  |  | Restricted Stock Awards |  |  | Restricted Stock Units |
Balance at April 1, 2017 |  |  | 1,363,247 |  |  |  | 2,105,743 |  |  |  | 3,759 |
Granted |  |  | — |  |  |  | 229,908 |  |  |  | — |
Exercised/vested |  |  | (37,300 | ) |  |  | (87,480 | ) |  |  | — |
Forfeitures |  |  | — |  |  |  | (6,538 | ) |  |  | (1,483 | )
Balance at June 30, 2017 |  |  | 1,325,947 |  |  |  | 2,241,633 |  |  |  | 2,276 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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