Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENT OF CHANGESIN SHAREHOLDERS??? EQUITY (Parenthetical)

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CONSOLIDATED STATEMENT OF CHANGESIN SHAREHOLDERS’ EQUITY (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Exercise of stock options, shares tendered in payment of exercise price (in shares) 19,294 19,658 846,789
Shares paid for tax withholding for share-based compensation 522,190 218,587 901,691
Shares surrendered for tax withholding     $ 2,038
Preferred Stock      
Underwriting discount and expenses $ 273 $ 958 $ 723
Option      
Exercise of stock options, shares tendered in payment of exercise price (in shares) 1,194,324 1,715,019 1,129,195
Warrant      
Exercise of stock options, shares tendered in payment of exercise price (in shares)     846,789