Securities (Fair Value to Amortized Cost Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	$ 111,595	$ 69,808
Gross unrealized gains, available for sale	12	38
Gross unrealized losses, available for sale	3,645	1,682
Estimated fair value, available for sale	107,962	68,164
Amortized cost, Held-to-maturity Securities	97,217	99,246
Gross unrealized gains, held to maturity	163	197
Gross unrealized losses, held to maturity	3,569	1,436
Estimated Fair Value, held to maturity	93,811	98,007
Equity securities carried at fair value through income	4,359
Equity Securities Carried At Fair Value Through Income, Estimated Fair Value	4,359
Non-marketable equity securities held in other financial institutions	249	121
Non-Marketable Equity Securities Held In Other Financial Institutions, Estimated Fair Value	249	121
Residential Mortgage Backed Securities Issued By US Government Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	6,705	7,265
Gross unrealized losses, available for sale	356	178
Estimated fair value, available for sale	6,349	7,087
Amortized cost, Held-to-maturity Securities	26,728	29,113
Gross unrealized gains, held to maturity	83	135
Gross unrealized losses, held to maturity	1,108	261
Estimated Fair Value, held to maturity	25,703	28,987
Residential Collateralized Mortgage Obligations, Issued By US Government Sponsored Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	92,042	45,283
Gross unrealized gains, available for sale	12	12
Gross unrealized losses, available for sale	2,622	1,158
Estimated fair value, available for sale	89,432	44,137
Amortized cost, Held-to-maturity Securities	52,087	54,805
Gross unrealized gains, held to maturity	80	62
Gross unrealized losses, held to maturity	1,726	845
Estimated Fair Value, held to maturity	50,441	54,022
US Agency [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale	12,848	12,863
Gross unrealized losses, available for sale	667	346
Estimated fair value, available for sale	12,181	12,517
Amortized cost, Held-to-maturity Securities	10,928	8,660
Gross unrealized losses, held to maturity	493	235
Estimated Fair Value, held to maturity	10,435	8,425
Asset-backed Securities, Issued by US Government Sponsored Enterprises and U.S. Agencies [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, Held-to-maturity Securities		81,700
Residential Collateralized Mortgage Obligations, Issued By Private Enterprises [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, Held-to-maturity Securities	522	651
Gross unrealized losses, held to maturity	41	52
Estimated Fair Value, held to maturity	481	599
US Government Agencies Callable Agency Bonds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, Held-to-maturity Securities	5,011	5,017
Gross unrealized losses, held to maturity	200	43
Estimated Fair Value, held to maturity	4,811	4,974
Certificates of Deposit Fixed [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, Held-to-maturity Securities	947
Estimated Fair Value, held to maturity	947
US Government Obligations [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, Held-to-maturity Securities	994	1,000
Gross unrealized losses, held to maturity	1
Estimated Fair Value, held to maturity	993	1,000
Bond Mutual Funds [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized cost, available for sale		4,397
Gross unrealized gains, available for sale		26
Estimated fair value, available for sale		4,423
CRA Investment Fund [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Equity securities carried at fair value through income	4,359
Equity Securities Carried At Fair Value Through Income, Estimated Fair Value	4,359
Other Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Non-marketable equity securities held in other financial institutions	249	121
Non-Marketable Equity Securities Held In Other Financial Institutions, Estimated Fair Value	$ 249	$ 121

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Equity Securities Carried At Fair Value Through Income, Estimated Fair Value

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Non-Marketable Equity Securities Held In Other Financial Institutions

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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