Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity Of Debt Securities (Details) - Municipal securities $ in Thousands	Sep. 30, 2016 USD ($)
Schedule Of Debt Securities [Line Items]
Within 1 year, amortized cost	$ 476
1-5 years, amortized cost	7,655
5-10 years, amortized cost	2,030
Total debt securities, amortized cost	10,161
Within 1 year, fair value	476
1-5 years, fair value	7,704
5-10 years, fair value	2,021
Total debt securities, fair value	$ 10,201
Within 1 year, weighted average yield	2.10%
1-5 years, weighted average yield	2.91%
5-10 years, weighted average yield	4.13%
Weighted average yield, total	3.12%