Debt Schedule of Short Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Short-term Debt [Line Items]
Short-term Borrowings	$ 60,421	$ 64,777
Overnight Advances from the Federal Home Loan Bank of New York [Member]
Short-term Debt [Line Items]
Short-term Borrowings	41,000	53,000
Maximum Borrowing Capacity	203,885	214,000
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term Borrowings	19,421	11,777
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Maximum Borrowing Capacity	35,000	30,000
Federal Reserve Bank of New York [Member]
Short-term Debt [Line Items]
Maximum Borrowing Capacity	$ 307,159	$ 302,000