Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks, reserves	$ 6,545	$ 6,669
Securities available-for-sale, at cost	325,888	344,416
Securities held-to-maturity, at fair value	$ 84,639	$ 98,261
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	16,548,829	11,362,716
Common stock, outstanding (in shares)	16,548,829	11,362,716
Series B Preferred Stock
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	32,000	32,000
Preferred stock, outstanding (in shares)	32,000	32,000
Series C Preferred stock
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	100,000	100,000
Preferred stock, issued (in shares)	89,875	91,098
Preferred stock, outstanding (in shares)	89,875	91,098