Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013		Dec. 31, 2012
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance					$ (941)	[1]	$ (1,712)	[1]
Other comprehensive income (loss) before reclassifications	805	[1]	(566)	[1]
Amounts reclassified from accumulated other comprehensive income	0	[1]	0	[1]
Net current-period other comprehensive income	805	[1]	(566)	[1]
Ending balance	(136)	[1]	(2,278)	[1]	(941)	[1]	(1,712)	[1]
Gains/(Losses) on Cash Flow Hedges [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance					(147)	[1]	(361)	[1]
Other comprehensive income (loss) before reclassifications	(22)	[1]	166	[1]
Amounts reclassified from accumulated other comprehensive income	0	[1]	0	[1]
Net current-period other comprehensive income	(22)	[1]	166	[1]
Ending balance	(169)	[1]	(195)	[1]	(147)	[1]	(361)	[1]
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance					(847)	[1]	(1,398)	[1]
Other comprehensive income (loss) before reclassifications	827	[1]	(732)	[1]
Amounts reclassified from accumulated other comprehensive income	0	[1]	0	[1]
Net current-period other comprehensive income	827	[1]	(732)	[1]
Ending balance	(20)	[1]	(2,130)	[1]	(847)	[1]	(1,398)	[1]
Supplemental Executive Retirement Plans [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance					53	[1]	47	[1]
Other comprehensive income (loss) before reclassifications	0	[1]	0	[1]
Amounts reclassified from accumulated other comprehensive income	0	[1]	0	[1]
Net current-period other comprehensive income	0	[1]	0	[1]
Ending balance	$ 53	[1]	$ 47	[1]	$ 53	[1]	$ 47	[1]

[1] All amounts are net of tax. Amounts in parentheses indicate debits.