Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Time certificates of deposit least amount	$ 100,000	$ 100,000
Held to Maturity, Fair Value, Total	808,656,000	603,640,000
Mortgages Held-for-sale, Fair Value Disclosure	$ 37,571,000	$ 6,431,000
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	75,000,000	75,000,000
Common Stock, unvested restricted Stock awards	148,756	153,429
Shares Held in Rabbi Trust	144,086	153,226
Junior Subordinated Debt [Member]
Unamortized Debt Issuance Expense	$ 41,000	$ 118,000
Subordinated Debt [Member]
Unamortized Debt Issuance Expense	695,000	272,000
Short-term Debt [Member]
Unamortized Debt Issuance Expense	0	0
Long-term Debt [Member]
Unamortized Debt Issuance Expense	$ 121,000	$ 0