CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Held-to-maturity, fair value	$ 11,607
Subordinated debentures, debt issuance costs	$ 1,845	$ 456
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred Stock, total liquidation value	$ 0	$ 0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	34,239,155	34,135,782
Common stock, shares outstanding	32,175,233	32,071,860
Treasury Stock, Shares	2,063,922	2,063,922
Series B Preferred Stock [Member]
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0