Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Consolidated Balance Sheets [Abstract]
Loans receivable, allowance	$ 7,473	$ 7,040
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	20,000,000	20,000,000
Common Stock, Shares, Issued	7,500,086	7,491,692
Common Stock, Shares, Outstanding	7,474,739	7,466,345
Treasury Stock, Shares	25,347	25,347