Quarterly report pursuant to Section 13 or 15(d)

SHARE-BASED COMPENSATION - Summarizes information related to our common stock options (Details)

v3.19.1
SHARE-BASED COMPENSATION - Summarizes information related to our common stock options (Details) - Stock options
 3 Months Ended
Mar. 31, 2019
$ / shares
shares
Number of Stock Options  
Options outstanding, beginning balance (in shares) | shares 2,575,774
Granted (in shares) | shares 0
Exercised (in shares) | shares (26,667)
Canceled/Forfeited (in shares) | shares 0
Expired (in shares) | shares 0
Options outstanding, ending balance (in shares) | shares 2,549,107
Options exercisable (in shares) | shares 1,953,777
Weighted Average Exercise Price  
Weighted average exercise price, Options outstanding (in dollars per share) | $ / shares $ 1.67
Granted (in dollars per share) | $ / shares 0.00
Exercised (in dollars per share) | $ / shares 1.70
Canceled/Forfeited (in dollars per share) | $ / shares 0.00
Expired (in dollars per share) | $ / shares 0.00
Weighted average exercise price, Options outstanding (in dollars per share) | $ / shares 1.67
Weighted average exercise price, Options exercisable (in dollars per share) | $ / shares $ 1.46