Consolidated Statement of Financial Condition (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Held-to-maturity securities, fair value	$ 100,365	$ 97,981
Preferred stock, no par value	$ 0	$ 0
Preferred Stock, Shares Authorized	2,000,000	2,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Shares, Issued	7,067,000	6,269,000
Common Stock, Shares, Outstanding	7,067,000	6,269,000
Series A Preferred Stock [Member]
Preferred Stock, Shares Authorized	30,000	30,000
Preferred Stock, Liquidation Preference Per Share	$ 1,000	$ 1,000
Preferred Stock, Shares Issued	10,000	20,000
Preferred Stock, Shares Outstanding	10,000	20,000
Preferred Stock, Dividend Rate, Percentage	9.00%	9.00%