United Security Bancshares (UBFO) 10-Q 6 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	UNITED SECURITY BANCSHARES
Entity Central Index Key	1,137,547
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Entity Common Stock, Shares Outstanding		16,901,618

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Cash and non-interest bearing deposits in other banks
Cash and non-interest bearing deposits in other banks	$ 29,939,000	$ 35,237,000
Due from Federal Reserve Bank (FRB)	161,189,000	72,697,000
Cash and cash equivalents	191,128,000	107,934,000
Investment securities (at fair value)
Available for sale (AFS) securities	56,724,000	41,985,000
Marketable equity securities	3,659,000	3,737,000
Total investment securities	60,383,000	45,722,000
Loans
Loans	573,996,000	601,351,000
Unearned fees and unamortized loan origination costs, net	355,000	1,039,000
Allowance for credit losses	(8,425,000)	(9,267,000)
Net loans	565,926,000	593,123,000
Accrued interest receivable	8,392,000	6,526,000
Premises and equipment – net	10,041,000	10,165,000
Other real estate owned	5,745,000	5,745,000
Goodwill	4,488,000	4,488,000
Cash surrender value of life insurance	19,803,000	19,752,000
Investment in limited partnerships	1,592,000	1,601,000
Deferred tax assets - net	2,616,000	2,389,000
Other assets	9,354,000	8,391,000
Total assets	879,468,000	805,836,000
Deposits
Noninterest bearing	281,686,000	307,299,000
Interest bearing	475,277,000	380,394,000
Total deposits	756,963,000	687,693,000
Accrued interest payable	43,000	44,000
Accounts payable and other liabilities	7,121,000	7,017,000
Junior subordinated debentures (at fair value)	10,125,000	9,730,000
Total liabilities	774,252,000	704,484,000
Shareholders' Equity
Common stock, no par value 20,000,000 shares authorized, 16,901,618 issued and outstanding at June 30, 2018, and 16,885,615 at December 31, 2017	58,309,000	57,880,000
Retained earnings	46,025,000	44,182,000
Accumulated other comprehensive income (loss)	882,000	(710,000)
Total shareholders' equity	105,216,000	101,352,000
Total liabilities and shareholders' equity	$ 879,468,000	$ 805,836,000

Consolidated Balance Sheets (u3

Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Shareholders' Equity
Common stock, par value (in dollars per share)
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	16,901,618	16,885,615
Common stock, shares outstanding (in shares)	16,901,618	16,885,615

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest Income:
Loans, including fees	$ 7,491	$ 7,579	$ 15,717	$ 14,804
Investment securities – AFS – taxable	265	229	457	453
Interest on deposits in FRB	681	301	1,065	484
Interest on deposits in other banks	0	1	0	2
Total interest income	8,437	8,110	17,239	15,743
Interest Expense:
Interest on deposits	550	364	937	700
Interest on other borrowings	109	74	199	143
Total interest expense	659	438	1,136	843
Net Interest Income	7,778	7,672	16,103	14,900
Recovery of Provision for Credit Losses	(1,136)	(52)	(1,325)	(31)
Net Interest Income after Recovery of Provision for Credit Losses	8,914	7,724	17,428	14,931
Noninterest Income:
Customer service fees	1,020	997	1,971	1,938
Increase in cash surrender value of bank-owned life insurance	132	134	257	266
Loss on marketable equity securities	(18)	0	(78)	0
Gain on proceeds from bank-owned life insurance	0	0	171	0
Loss on fair value of financial liability	(192)	(264)	(661)	(601)
Gain on sale of assets	29	0	29	0
Other	198	199	403	372
Total noninterest income	1,169	1,066	2,092	1,975
Noninterest Expense:
Salaries and employee benefits	3,010	2,586	5,971	5,571
Occupancy expense	1,117	1,043	2,135	2,058
Data processing	38	25	90	52
Professional fees	392	345	727	600
Regulatory assessments	78	133	161	269
Director fees	81	75	162	143
Correspondent bank service charges	17	19	34	37
Loss on California tax credit partnership	5	10	9	119
Net cost (gain) on operation and sale of OREO	49	(309)	100	(277)
Other	531	680	929	1,226
Total noninterest expense	5,318	4,607	10,318	9,798
Income Before Provision for Taxes	4,765	4,183	9,202	7,108
Provision for Taxes on Income	1,373	1,691	2,653	2,845
Net Income	$ 3,392	$ 2,492	$ 6,549	$ 4,263
Net Income per common share
Basic (in dollars per share)	$ 0.20	$ 0.15	$ 0.39	$ 0.25
Diluted (in dollars per share)	$ 0.20	$ 0.15	$ 0.39	$ 0.25
Shares on which net income per common shares were based
Basic (in shares)	16,899,968	16,875,336	16,895,135	16,792,083
Diluted (in shares)	16,957,282	16,894,373	16,935,911	16,808,733

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 3,392	$ 2,492	$ 6,549	$ 4,263
Unrealized holdings (loss) gain on securities	(171)	267	(428)	355
Unrealized gains on unrecognized post-retirement costs	18	13	27	26
Unrealized (loss) gain on TRUPs	(272)	0	295	0
Other comprehensive income (loss), before tax	(425)	280	(106)	381
Tax benefit (expense) related to securities	46	(107)	128	(142)
Tax expense related to unrecognized post-retirement costs	(5)	(6)	(8)	(11)
Tax benefit (expense) related to TRUPs	80	0	(88)	0
Total other comprehensive income (loss)	(304)	167	(74)	228
Comprehensive Income	$ 3,088	$ 2,659	$ 6,475	$ 4,491

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands		Total	Common stock		Retained Earnings	Accumulated Other Comprehensive (Loss) Gain	Restricted Stock	Restricted Stock Units (RSUs)	Restricted Stock Units (RSUs)Common stock	Dividend declared	Dividend declaredRetained Earnings
Unvested restricted shares (in shares)							12,015
Dividends declared on common stock (in dollars per share)		$ 50
Balance (in shares) at Dec. 31, 2016	[1]		16,705,594
Balance at Dec. 31, 2016		$ 96,654	$ 56,557		$ 40,701	$ (604)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)		228				228
Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income		0
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities		0
Common stock dividends (in shares)			167,082
Common stock dividends		0	$ 1,221		(1,221)
Dividends on common stock		(845)			(845)						$ (845)
Stock options exercised (in shares)			2,514
Stock options exercised		6	$ 6
Stock-based compensation expense		60	$ 60
Net Income		4,263			4,263
Balance (in shares) at Jun. 30, 2017	[2]		16,875,190
Balance at Jun. 30, 2017		$ 99,521	$ 57,844		42,053	(376)
Unvested restricted shares (in shares)							9,011
Dividends payable (in dollars per share)		$ 50
Dividends declared on common stock (in dollars per share)		$ 70
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)		$ (221)				(221)
Reclassification of income tax effects from accumulated other comprehensive income		0			113	(113)
Dividends on common stock		(1,180)			(1,180)					$ (1,182)	(1,182)
Restricted stock units released (in shares)									10,425
Restricted stock units released								$ 0
Stock-based compensation expense		36	$ 36
Net Income		$ 4,378			4,378
Balance (in shares) at Dec. 31, 2017		16,885,615	16,885,615	[3]
Balance at Dec. 31, 2017		$ 101,352	$ 57,880		44,182	(710)
Unvested restricted shares (in shares)							46,511
Dividends payable (in dollars per share)		$ 70
Dividends declared on common stock (in dollars per share)		$ 90
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)		$ (74)				(74)
Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income		(1,482)
Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income | ASU 2016-01					(1,482)	1,482
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities		184
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities | ASU 2016-01					(184)	184
Dividends on common stock		(1,520)			(1,520)					$ (1,520)	$ (1,520)
Restricted stock units released (in shares)									16,003
Restricted stock units released								$ 0
Stock-based compensation expense		429	$ 429
Net Income		$ 6,549			6,549
Balance (in shares) at Jun. 30, 2018		16,901,618	16,901,618	[4]
Balance at Jun. 30, 2018		$ 105,216	$ 58,309		$ 46,025	$ 882
Unvested restricted shares (in shares)							78,508
Dividends payable (in dollars per share)		$ 0.09
[1]	Excludes 12,015 unvested restricted shares
[2]	Excludes 9,011 unvested restricted shares
[3]	Excludes 46,511 unvested restricted shares
[4]	Excludes 78,508 unvested restricted shares

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Cash Flows From Operating Activities:
Net Income	$ 3,392	$ 2,492	$ 6,549	$ 4,378	$ 4,263
Adjustments to reconcile net income: to cash provided by operating activities:
Recovery of provision for credit losses	(1,136)	(52)	(1,325)		(31)
Depreciation and amortization			666		654
Amortization of investment securities			261		278
Accretion of investment securities			(3)		(4)
Increase in accrued interest receivable			(1,866)		(1,191)
Decrease in accrued interest payable			(1)		(43)
Decrease in accounts payable and accrued liabilities			(1,401)		(398)
Decrease in unearned fees and unamortized loan origination costs, net			684		152
Increase in income taxes receivable			(1,204)		(1,319)
Unrealized loss on marketable equity securities	18	0	78		0
Stock-based compensation expense			429		60
Provision for deferred income taxes			(108)		(247)
Gain on sale of other real estate owned			0		(336)
Gain on bank owned life insurance	0	0	(171)		0
Increase in cash surrender value of bank-owned life insurance			(257)		(266)
Loss on fair value option of financial liabilities			661		601
Loss on tax credit limited partnership interest	5	10	9		119
Gain on sale of premises and equipment	(29)	0	(29)		0
Net increase in other assets			(28)		(42)
Net cash provided by operating activities			2,944		2,250
Cash Flows From Investing Activities:
Net increase in interest-bearing deposits with banks			0		(2)
Purchase of correspondent bank stock			(10)		(495)
Purchases of available-for-sale securities			(19,860)		0
Principal payments of available-for-sale securities			4,698		4,112
Net decrease in loans			27,839		2,654
Cash proceeds from sales of other real estate owned			0		1,062
Investment in limited partnership			0		(1,028)
Proceeds from bank owned life insurance			376		0
Capital expenditures of premises and equipment			(542)		(919)
Net cash provided by investing activities			12,501		5,384
Cash Flows From Financing Activities:
Net increase in demand deposits and savings accounts			67,299		24,885
Net increase (decrease) in time deposits			1,970		(35,203)
Proceeds from exercise of stock options			0		6
Dividends on common stock			(1,520)		(846)
Net cash provided by (used in) financing activities			67,749		(11,158)
Net increase (decrease) in cash and cash equivalents			83,194		(3,524)
Cash and cash equivalents at beginning of period			107,934	109,508	113,032
Cash and cash equivalents at end of period	$ 191,128	$ 109,508	$ 191,128	$ 107,934	$ 109,508

Organization and Summary of Sig

Organization and Summary of Significant Accounting and Reporting Policies	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Summary of Significant Accounting and Reporting Policies	Organization and Summary of Significant Accounting and Reporting Policies The consolidated financial statements include the accounts of United Security Bancshares, and its wholly owned subsidiary United Security Bank (the “Bank”) and one bank subsidiary, USB Investment Trust (the “REIT”) (collectively the “Company” or “USB”). Intercompany accounts and transactions have been eliminated in consolidation. These unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information on a basis consistent with the accounting policies reflected in the audited financial statements of the Company included in its 2017 Annual Report on Form 10-K. These interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of a normal, recurring nature) considered necessary for a fair presentation have been included. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for any other interim period or for the year as a whole. Revenue from Contracts with Customers: The Company records revenue from contracts with customers in accordance with Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (“Topic 606”). Under Topic 606, the Company must identify the contract with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize revenue when (or as) the Company satisfies a performance obligation. The Company’s primary sources of revenue are derived from interest and dividends earned on loans, investment securities, and other financial instruments that are not within the scope of Topic 606. The Company has evaluated the nature of its contracts with customers and determined that further disaggregation of revenue from contracts with customers into more granular categories beyond what is presented in the Consolidated Statements of Income was not necessary. The Company generally fully satisfies its performance obligations on its contracts with customers as services are rendered and the transaction prices are typically fixed; charged either on a periodic basis or based on activity. Because performance obligations are satisfied as services are rendered and the transaction prices are fixed, there is little judgment involved in applying Topic 606 that significantly affects the determination of the amount and timing of revenue from contracts with customers. The Company adopted Topic 606 using the modified retrospective method on all contracts not completed as of January 1, 2018. The adoption of Topic 606 did not result in a material change to the accounting for any of the in-scope revenue streams. As such, no cumulative effect adjustment was recorded. Recently Issued Accounting Standards : In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”). The guidance affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 was effective for the Company on January 1, 2018 and resulted in separate classification of equity securities previously included in available for sale securities on the consolidated balance sheets with changes in the fair value of the equity securities captured in the consolidated statements of income. See Note 2 – Investment Securities for disclosures related to equity securities. Adoption of the standard also resulted in the use of an exit price rather than an entrance price to determine the fair value of loans not measured at fair value on a non-recurring basis in the consolidated balance sheets. See Note 11 – Fair Value Disclosures for further information regarding the valuation of these loans. Additionally, adoption of the standard resulted in separately recognizing the instrument-specific credit risk associated with the Company's Junior Subordinated Debt. See Note 10 - Junior Subordinated Debt / Trust Preferred Securities for additional information. In February 2016, FASB issued ASU 2016-02, Leases (Topic 842). The FASB is issuing this Update to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. To meet that objective, the FASB is amending the FASB Accounting Standards Codification® and creating Topic 842, Leases. This Update, along with IFRS 16, Leases, are the results of the FASB’s and the International Accounting Standards Board’s (IASB’s) efforts to meet that objective and improve financial reporting. This ASU will be effective for public business entities for annual periods beginning after December 15, 2018 (i.e., calendar periods beginning on January 1, 2019), and interim periods therein. Although an estimate of the impact of the new leasing standard has not yet been determined, the Company expects a significant new lease asset and related lease liability on the consolidated balance sheet due to the number of leased branches and standalone ATM sites the Company currently has that are accounted for under current operating lease guidance. The Company has implemented a lease review team and is in the process of determining the best vendor to assist in the calculation and implementation of this standard. In June 2016, FASB issued ASU 2016-13, Financial Instruments- Credit Losses (Topic 326). The FASB is issuing this Update to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The Update requires enhanced disclosures and judgments in estimating credit losses and also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. This amendment is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company has established a project team for the implementation of this new standard. The team has started by working with a vendor to put a new Allowance for Loan Loss software in place and is collecting additional historical data to estimate the impact of this standard. An estimate of the impact of this standard has not yet been determined, however, the impact on the Company's consolidated financial statements is expected to be significant. In January 2017, FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350). The FASB is issuing this Update to eliminate the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. This ASU will be effective for public business entities for annual periods beginning after December 15, 2019 (i.e. calendar periods beginning on January 1, 2020, and interim periods therein. The Company does not expect any impact on the Company's consolidated financial statements resulting from the adoption of this Update. In March 2017, FASB issued ASU 2017-08 - Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The provisions of the update require premiums recognized upon the purchase of callable debt securities to be amortized to the earliest call date in order to avoid losses recognized upon call. For public business entities that are SEC filers the amendments of the update will become effective in fiscal years beginning after December 15, 2018. The Company does not expect the requirements of this Update to have a material impact on the Company’s financial position, results of operations or cash flows.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Following is a comparison of the amortized cost and fair value of securities available-for-sale, as of June 30, 2018 and December 31, 2017 : (in 000's) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Carrying Amount) June 30, 2018 Securities available for sale: U.S. Government agencies $ 30,327 $ 182 $ (158 ) $ 30,351 U.S. Government sponsored entities & agencies collateralized by mortgage obligations 26,914 37 (578 ) 26,373 Total securities available for sale $ 57,241 $ 219 $ (736 ) $ 56,724 (in 000's) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Carrying Amount) December 31, 2017 Securities available for sale: U.S. Government agencies $ 19,683 $ 312 $ (41 ) $ 19,954 U.S. Government sponsored entities & agencies collateralized by mortgage obligations 22,391 56 (416 ) 22,031 Total securities available for sale $ 42,074 $ 368 $ (457 ) $ 41,985 The amortized cost and fair value of securities available for sale at June 30, 2018 , by contractual maturity, are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay obligations with or without call or prepayment penalties. Contractual maturities on collateralized mortgage obligations cannot be anticipated due to allowed paydowns. June 30, 2018 Amortized Cost Fair Value (Carrying Amount) (in 000's) Due in one year or less $ — $ — Due after one year through five years — — Due after five years through ten years 6,045 6,031 Due after ten years 24,282 24,320 Collateralized mortgage obligations 26,914 26,373 $ 57,241 $ 56,724 There were no realized gains or losses on sales of available-for-sale securities for the three and six month periods ended June 30, 2018 and June 30, 2017 . There were no other-than-temporary impairment losses for the three and six month periods ended June 30, 2018 and June 30, 2017 . At June 30, 2018 , available-for-sale securities with an amortized cost of approximately $50,806,841 (fair value of $50,240,058 ) were pledged as collateral for FHLB borrowings, securitized deposits, and public funds balances. Management periodically evaluates each available-for-sale investment security in an unrealized loss position to determine if the impairment is temporary or other-than-temporary. The following summarizes temporarily impaired investment securities: (in 000's) Less than 12 Months 12 Months or More Total June 30, 2018 Fair Value (Carrying Amount) Unrealized Losses Fair Value (Carrying Amount) Unrealized Losses Fair Value (Carrying Amount) Unrealized Losses Securities available for sale: U.S. Government agencies $ 12,673 $ (55 ) 7,464 (103 ) $ 20,137 $ (158 ) U.S. Government sponsored entities & agencies collateralized by mortgage obligations 7,188 (204 ) 12,134 (374 ) 19,322 (578 ) Total impaired securities $ 19,861 $ (259 ) $ 19,598 $ (477 ) $ 39,459 $ (736 ) December 31, 2017 Securities available for sale: U.S. Government agencies $ 1,728 $ (3 ) $ 6,625 $ (38 ) $ 8,353 $ (41 ) U.S. Government sponsored entities & agencies collateralized by mortgage obligations 7,483 (154 ) 13,583 (262 ) 21,066 (416 ) Total impaired securities $ 9,211 $ (157 ) $ 20,208 $ (300 ) $ 29,419 $ (457 ) Temporarily impaired securities at June 30, 2018 , were comprised of seven U.S. government agency securities, and twelve U.S. government sponsored entities and agencies collateralized by mortgage obligations securities. The Company evaluates investment securities for other-than-temporary impairment (OTTI) at least quarterly, and more frequently when economic or market conditions warrant such an evaluation. The investment securities portfolio is evaluated for OTTI by segregating the portfolio into two general segments and applying the appropriate OTTI model. Investment securities classified as available-for-sale or held-to-maturity are generally evaluated for OTTI under ASC Topic 320, Investments – Debt and Equity Instruments . Certain purchased beneficial interests, including non-agency mortgage-backed securities, asset-backed securities, and collateralized debt obligations, are evaluated under ASC Topic 325-40, Beneficial Interest in Securitized Financial Assets. In the first segment, the Company considers many factors in determining OTTI, including: (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, (3) whether the market decline was affected by macroeconomic conditions, and (4) whether the Company has the intent to sell the debt security or more likely than not will be required to sell the debt security before its anticipated recovery. The assessment of whether an other-than-temporary decline exists involves a high degree of subjectivity and judgment and is based on the information available to the Company at the time of the evaluation. The second segment of the portfolio uses the OTTI guidance that is specific to purchased beneficial interests including private label mortgage-backed securities. Under this model, the Company compares the present value of the remaining cash flows as estimated at the preceding evaluation date to the current expected remaining cash flows. An OTTI is deemed to have occurred if there has been an adverse change in the remaining expected future cash flows. Additionally, other-than-temporary-impairment occurs when the Company intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss. If the Company intends to sell or more likely than not will be required to sell the security before recovery of its amortized cost basis less any current-period credit loss, the other-than-temporary-impairment shall be recognized in earnings equal to the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date. If the Company does not intend to sell the security and it is not more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis less any current-period loss, the other-than-temporary-impairment shall be separated into the amount representing the credit loss and the amount related to all other factors. The amount of the total other-than-temporary-impairment related to the credit loss is recognized in earnings, and is determined based on the difference between the present value of cash flows expected to be collected and the current amortized cost of the security. The amount of the total other-than-temporary-impairment related to other factors shall be recognized in other comprehensive (loss) income, net of applicable taxes. The previous amortized cost basis less the other-than-temporary-impairment recognized in earnings shall become the new amortized cost basis of the investment. At June 30, 2018 , the decline in fair value of the seven U.S. government agency securities, and the twelve U.S. government sponsored entities and agencies collateralized by mortgage obligations securities is attributable to changes in interest rates, and not credit quality. Because the Company does not have the intent to sell these impaired securities, and it is not more likely than not that it will be required to sell these securities before its anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at June 30, 2018 . As of December 31, 2017 , marketable equity securities with a fair value of $3,737,000 were recorded within investment securities available for sale with unrealized losses recorded through comprehensive income and accumulated other comprehensive income. As of January 1, 2018, the Company adopted Accounting Standard Update (“ASU”) 2016-01 and reclassified its marketable equity securities from investments available for sale into a separate component of investment securities. The ASU requires marketable equity securities to be reported at fair value with changes recorded through earnings. As of January 1, 2018, unrealized losses of $184,000 were reclassified from accumulated other comprehensive income to retained earnings. During the six months ended June 30, 2018 , the Company recognized $78,000 of unrealized losses related to equity securities held at June 30, 2018 in the consolidated statements of income. For the quarter ended June 30, 2018 , the Company recognized $18,000 of unrealized losses related to equity securities held at June 30, 2018 in the consolidated statements of income. The resulting impact on basic and diluted earnings per share for the quarter and six months ended June 30, 2018 is immaterial. The Company had no held-to-maturity or trading securities at June 30, 2018 or December 31, 2017 .

Loans

Loans	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Loans	Loans Loans are comprised of the following: (in 000's) June 30, 2018 December 31, 2017 Commercial and Business Loans $ 57,047 $ 46,065 Government Program Loans 908 961 Total Commercial and Industrial 57,955 47,026 Real Estate – Mortgage: Commercial Real Estate 212,513 221,032 Residential Mortgages 70,512 84,804 Home Improvement and Home Equity loans 386 457 Total Real Estate Mortgage 283,411 306,293 Real Estate Construction and Development 108,571 122,970 Agricultural 56,662 59,481 Installment and Student Loans 67,397 65,581 Total Loans $ 573,996 $ 601,351 The Company's loans are predominantly in the San Joaquin Valley and the greater Oakhurst/East Madera County area, as well as the Campbell area of Santa Clara County. Although the Company does participate in loans with other financial institutions, they are primarily in the state of California. Commercial and industrial loans represent 10.1% of total loans at June 30, 2018 and are generally made to support the ongoing operations of small-to-medium sized commercial businesses. Commercial and industrial loans have a high degree of industry diversification and provide working capital, financing for the purchase of manufacturing plants and equipment, or funding for growth and general expansion of businesses. A substantial portion of commercial and industrial loans are secured by accounts receivable, inventory, leases, or other collateral including real estate. The remainder are unsecured; however, extensions of credit are predicated upon the financial capacity of the borrower. Repayment of commercial loans is generally from the cash flow of the borrower. Real estate mortgage loans, representing 49.4% of total loans at June 30, 2018 , are secured by trust deeds on primarily commercial property, but are also secured by trust deeds on single family residences. Repayment of real estate mortgage loans generally comes from the cash flow of the borrower and or guarantor(s). • Commercial real estate mortgage loans comprise the largest segment of this loan category and are available on all types of income producing and non-income producing commercial properties, including: office buildings, shopping centers; apartments and motels; owner occupied buildings; manufacturing facilities and more. Commercial real estate mortgage loans can also be used to refinance existing debt. Commercial real estate loans are made under the premise that the loan will be repaid from the borrower's business operations, rental income associated with the real property, or personal assets. • Residential mortgage loans are provided to individuals to finance or refinance single-family residences. Residential mortgages are not a primary business line offered by the Company, and a majority are conventional mortgages that were purchased as a pool. • Home Improvement and Home Equity loans comprise a relatively small portion of total real estate mortgage loans. Home equity loans are generally secured by junior trust deeds, but may be secured by 1 st trust deeds. Real estate construction and development loans, representing 18.9% of total loans at June 30, 2018 , consist of loans for residential and commercial construction projects, as well as land acquisition and development, or land held for future development. Loans in this category are secured by real estate including improved and unimproved land, as well as single-family residential, multi-family residential, and commercial properties in various stages of completion. All real estate loans have established equity requirements. Repayment on construction loans generally comes from long-term mortgages with other lending institutions obtained at completion of the project or from the sale of the constructed homes to individuals. Agricultural loans represent 9.9% of total loans at June 30, 2018 and are generally secured by land, equipment, inventory and receivables. Repayment is from the cash flow of the borrower. Installment loans, including student loans, represent 11.7% of total loans at June 30, 2018 and generally consist of student loans, loans to individuals for household, family and other personal expenditures, automobiles or other consumer items. Included in installment loans are $ 61,761,000 in unsecured student loans made to medical and pharmacy school students. Upon graduation the loan is automatically placed on deferment for 6 months. This may be extended up to 48 months for graduates enrolling in Internship, Medical Residency or Fellowship. As approved the student may receive additional deferment for hardship or administrative reasons in the form of forbearance for a maximum of 24 months throughout the life of the loan. Accrued interest on loans that have not entered repayment status totaled $ 6,186,000 at June 30, 2018 . At June 30, 2018 there were 316 loans within repayment, deferment, and forbearance which represented $6,129,000 , $1,270,000 , and $3,006,000 in outstanding balances respectively. Prior to June 2018, student loans were insured through a Surety Bond issued by ReliaMax Surety Company and provided the Company reasonable expectation of collection. In June 2018, ReliaMax Surety Company was declared insolvent by the South Dakota Division of Insurance and is now in liquidation. As a result of the insolvency, the Company's student loan portfolio is no longer insured. In the normal course of business, the Company is party to financial instruments with off-balance sheet risk to meet the financing needs of its customers. At June 30, 2018 and December 31, 2017 , these financial instruments include commitments to extend credit of $123,711,000 and $99,958,000 , respectively, and standby letters of credit of $605,000 and $2,058,000 , respectively. These instruments involve elements of credit risk in excess of the amount recognized on the consolidated balance sheet. The contract amounts of these instruments reflect the extent of the involvement the Company has in off-balance sheet financial instruments. The Company’s exposure to credit loss in the event of nonperformance by the counterparty to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amounts of those instruments. The Company uses the same credit policies as it does for on-balance sheet instruments. Commitments to extend credit are agreements to lend to a customer, as long as there is no violation of any condition established in the contract. A majority of these commitments are at floating interest rates based on the Prime rate. Commitments generally have fixed expiration dates. The Company evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary, is based on management's credit evaluation. Collateral held varies but includes accounts receivable, inventory, leases, property, plant and equipment, residential real estate and income-producing properties. Standby letters of credit are generally unsecured and are issued by the Company to guarantee the performance of a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. During the second quarter of 2018, the Bank entered into a Small Business Administration (SBA) 504 Loan Forward Purchase Commitment to buy a one hundred percent (100%) interest in up to $30 million , first mortgage, California SBA 504 loans on a flow basis with servicing released by the Seller. Past Due Loans The Company monitors delinquency and potential problem loans on an ongoing basis through weekly reports to the Loan Committee and monthly reports to the Board of Directors. The following is a summary of delinquent loans at June 30, 2018 (in 000's): June 30, 2018 Loans 30-60 Days Past Due Loans 61-89 Days Past Due Loans 90 or More Days Past Due Total Past Due Loans Current Loans Total Loans Accruing Loans 90 or More Days Past Due Commercial and Business Loans $ — $ — $ — $ — $ 57,047 $ 57,047 $ — Government Program Loans — — — — 908 908 — Total Commercial and Industrial — — — — 57,955 57,955 — Commercial Real Estate Loans — — — — 212,513 212,513 — Residential Mortgages — — — — 70,512 70,512 — Home Improvement and Home Equity Loans — — — — 386 386 — Total Real Estate Mortgage — — — — 283,411 283,411 — Real Estate Construction and Development Loans — — 8,825 8,825 99,746 108,571 — Agricultural Loans — — — — 56,662 56,662 — Consumer Loans 231 83 — 314 66,929 67,243 67 Overdraft Protection Lines — — — — 38 38 — Overdrafts — — — — 116 116 — Total Installment 231 83 — 314 67,083 67,397 67 Total Loans $ 231 $ 83 $ 8,825 $ 9,139 $ 564,857 $ 573,996 $ 67 The following is a summary of delinquent loans at December 31, 2017 (in 000's): December 31, 2017 Loans 30-60 Days Past Due Loans 61-89 Days Past Due Loans 90 or More Days Past Due Total Past Due Loans Current Loans Total Loans Accruing Loans 90 or More Days Past Due Commercial and Business Loans $ — $ — $ 212 $ 212 $ 45,853 $ 46,065 $ — Government Program Loans — — — — 961 961 — Total Commercial and Industrial — — 212 212 46,814 47,026 — Commercial Real Estate Loans 779 — — 779 220,253 221,032 — Residential Mortgages — — 94 94 84,710 84,804 — Home Improvement and Home Equity Loans — — — — 457 457 — Total Real Estate Mortgage 779 — 94 873 305,420 306,293 — Real Estate Construction and Development Loans — — 360 360 122,610 122,970 360 Agricultural Loans — — — — 59,481 59,481 — Consumer Loans — — — — 65,446 65,446 125 Overdraft Protection Lines — — — — 38 38 — Overdrafts — — — — 97 97 — Total Installment — — — — 65,581 65,581 125 Total Loans $ 779 $ — $ 666 $ 1,445 $ 599,906 $ 601,351 $ 485 Nonaccrual Loans Commercial, construction and commercial real estate loans are placed on nonaccrual status under the following circumstances: - When there is doubt regarding the full repayment of interest and principal. - When principal and/or interest on the loan has been in default for a period of 90 -days or more, unless the asset is both well secured and in the process of collection that will result in repayment in the near future. - When the loan is identified as having loss elements and/or is risk rated "8" Doubtful. Other circumstances which jeopardize the ultimate collectability of the loan including certain troubled debt restructurings, identified loan impairment, and certain loans to facilitate the sale of OREO. Loans meeting any of the preceding criteria are placed on nonaccrual status and the accrual of interest for financial statement purposes is discontinued. Previously accrued but unpaid interest is reversed and charged against interest income. All other loans where principal or interest is due and unpaid for 90 days or more are placed on nonaccrual and the accrual of interest for financial statement purposes is discontinued. Previously accrued but unpaid interest is reversed and charged against interest income. When a loan is placed on nonaccrual status and subsequent payments of interest (and principal) are received, the interest received may be accounted for in two separate ways. Cost recovery method : If the loan is in doubt as to full collection, the interest received in subsequent payments is diverted from interest income to a valuation reserve and treated as a reduction of principal for financial reporting purposes. Cash basis : This method is only used if the recorded investment or total contractual amount is expected to be fully collectible, under which circumstances the subsequent payments of interest are credited to interest income as received. Loans on non-accrual status are usually not returned to accrual status unless all delinquent principal and/or interest has been brought current, there is no identified element of loss, and current and continued satisfactory performance is expected (loss of the contractual amount not the carrying amount of the loan). Return to accrual is generally demonstrated through the timely receipt of at least six monthly payments on a loan with monthly amortization. Nonaccrual loans totaled $12,202,000 and $5,296,000 at June 30, 2018 and December 31, 2017 , respectively. Two loans were added to nonaccrual during the quarter ended June 30, 2018. Those loans, totaling $8,825,000 , were made to the same borrower and are well-secured by real estate collateral. There were no remaining undisbursed commitments to extend credit on nonaccrual loans at June 30, 2018 or December 31, 2017 . The following is a summary of nonaccrual loan balances at June 30, 2018 and December 31, 2017 (in 000's). June 30, 2018 December 31, 2017 Commercial and Business Loans $ — $ 212 Government Program Loans — — Total Commercial and Industrial — 212 Commercial Real Estate Loans 438 454 Residential Mortgages — 288 Home Improvement and Home Equity Loans — — Total Real Estate Mortgage 438 742 Real Estate Construction and Development Loans 11,764 4,342 Agricultural Loans — — Consumer Loans — — Overdraft Protection Lines — — Overdrafts — — Total Installment — — Total Loans $ 12,202 $ 5,296 Impaired Loans A loan is considered impaired when based on current information and events, it is probable that the Company will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the loan agreement. The Company applies its normal loan review procedures in making judgments regarding probable losses and loan impairment. The Company evaluates for impairment those loans on nonaccrual status, graded doubtful, graded substandard or those that are troubled debt restructures. The primary basis for inclusion in impaired status under generally accepted accounting pronouncements is that it is probable that the Bank will be unable to collect all amounts due according to the contractual terms of the loan agreement. A loan is not considered impaired if there is merely an insignificant delay or shortfall in the amounts of payments and the Company expects to collect all amounts due, including interest accrued, at the contractual interest rate for the period of the delay. Review for impairment does not include large groups of smaller balance homogeneous loans that are collectively evaluated to estimate the allowance for loan losses. The Company’s present allowance for loan losses methodology, including migration analysis, captures required reserves for these loans in the formula allowance. For loans determined to be impaired, the Company evaluates impairment based upon either the fair value of underlying collateral, discounted cash flows of expected payments, or observable market price. - For loans secured by collateral including real estate and equipment, the fair value of the collateral less selling costs will determine the carrying value of the loan. The difference between the recorded investment in the loan and the fair value, less selling costs, determines the amount of impairment. The Company uses the measurement method based on fair value of collateral when the loan is collateral dependent and foreclosure is probable. For loans that are not considered collateral dependent, a discounted cash flow methodology is used. - The discounted cash flow method of measuring the impairment of a loan is used for impaired loans that are not considered to be collateral dependent. Under this method, the Company assesses both the amount and timing of cash flows expected from impaired loans. The estimated cash flows are discounted using the loan's effective interest rate. The difference between the amount of the loan on the Bank's books and the discounted cash flow amounts determines the amount of impairment to be provided. This method is used for most of the Company’s troubled debt restructurings or other impaired loans where some payment stream is being collected. - The observable market price method of measuring the impairment of a loan is only used by the Company when the sale of loans or a loan is in process. The method for recognizing interest income on impaired loans is dependent on whether the loan is on nonaccrual status or is a troubled debt restructure. For income recognition, the existing nonaccrual and troubled debt restructuring policies are applied to impaired loans. Generally, except for certain troubled debt restructurings which are performing under the restructure agreement, the Company does not recognize interest income received on impaired loans, but reduces the carrying amount of the loan for financial reporting purposes. Loans other than certain homogeneous loan portfolios are reviewed on a quarterly basis for impairment. Impaired loans are written down to estimated realizable values by the establishment of specific reserves for loan utilizing the discounted cash flow method, or charge-offs for collateral-based impaired loans, or those using observable market pricing. The following is a summary of impaired loans at June 30, 2018 (in 000's). June 30, 2018 Unpaid Contractual Principal Balance Recorded Investment With No Allowance (1) Recorded Investment With Allowance (1) Total Recorded Investment Related Allowance Average Recorded Investment (2) Interest Recognized (2) Commercial and Business Loans $ 2,937 $ 535 $ 2,414 $ 2,949 $ 444 $ 3,171 $ 97 Government Program Loans 308 309 — 309 — 226 10 Total Commercial and Industrial 3,245 844 2,414 3,258 444 3,397 107 Commercial Real Estate Loans 1,362 — 1,367 1,367 510 1,409 34 Residential Mortgages 2,219 400 1,828 2,228 80 2,604 60 Home Improvement and Home Equity Loans — — — — — — — Total Real Estate Mortgage 3,581 400 3,195 3,595 590 4,013 94 Real Estate Construction and Development Loans 11,764 11,764 — 11,764 — 7,447 205 Agricultural Loans 1,010 1 1,016 1,017 706 1,112 43 Consumer Loans 62 62 — 62 — 49 3 Overdraft Protection Lines — — — — — — — Overdrafts — — — — — — — Total Installment 62 62 — 62 — 49 3 Total Impaired Loans $ 19,662 $ 13,071 $ 6,625 $ 19,696 $ 1,740 $ 16,018 $ 452 (1) The recorded investment in loans includes accrued interest receivable of $ 34 . (2) Information is based on the six month period ended June 30, 2018 . The following is a summary of impaired loans at December 31, 2017 (in 000's). December 31, 2017 Unpaid Contractual Principal Balance Recorded Investment With No Allowance (1) Recorded Investment With Allowance (1) Total Recorded Investment Related Allowance Average Recorded Investment (2) Interest Recognized (2) Commercial and Business Loans $ 3,255 $ 381 $ 2,887 $ 3,268 $ 534 $ 3,791 $ 229 Government Program Loans 49 50 — 50 — 219 5 Total Commercial and Industrial 3,304 431 2,887 3,318 534 4,010 234 Commercial Real Estate Loans 1,233 — 1,245 1,245 385 1,138 79 Residential Mortgages 3,040 1,199 1,852 3,051 103 2,745 142 Home Improvement and Home Equity Loans — — — — — — — Total Real Estate Mortgage 4,273 1,199 3,097 4,296 488 3,883 221 Real Estate Construction and Development Loans 5,951 5,972 — 5,972 — 6,660 418 Agricultural Loans 1,200 1 1,203 1,204 866 1,179 48 Consumer Loans — — — — — 241 — Overdraft Protection Lines — — — — — — — Overdrafts — — — — — — — Total Installment — — — — — 241 — Total Impaired Loans $ 14,728 $ 7,603 $ 7,187 $ 14,790 $ 1,888 $ 15,973 $ 921 (1) The recorded investment in loans includes accrued interest receivable of $ 62 . (2) Information is based on the twelve month period ended December 31, 2017 . In most cases, the Company uses the cash basis method of income recognition for impaired loans. In the case of certain troubled debt restructurings for which the loan is performing under the current contractual terms for a reasonable period of time, income is recognized under the accrual method. The average recorded investment in impaired loans for the quarters ended June 30, 2018 and 2017 was $16,633,000 and $16,881,000 , respectively. Interest income recognized on impaired loans for the quarters ended June 30, 2018 and 2017 was approximately $282,000 and $323,000 , respectively. For impaired nonaccrual loans, interest income recognized under a cash-basis method of accounting was approximately $150,000 and $111,000 for the quarters ended June 30, 2018 and 2017 , respectively. The average recorded investment in impaired loans for the six months ended June 30, 2018 and 2017 was $16,018,000 and $16,468,000 , respectively. Interest income recognized on impaired loans for the six months ended June 30, 2018 and 2017 was approximately $452,000 and $546,000 , respectively. For impaired nonaccrual loans, interest income recognized under a cash-basis method of accounting was approximately $213,000 and $190,000 for the six months ended June 30, 2018 and 2017 , respectively. Troubled Debt Restructurings In certain circumstances, when the Company grants a concession to a borrower as part of a loan restructuring, the restructuring is accounted for as a troubled debt restructuring (TDR). TDRs are reported as a component of impaired loans. A TDR is a type of restructuring in which the Company, for economic or legal reasons related to the borrower's financial difficulties, grants a concession (either imposed by court order, law, or agreement between the borrower and the Bank) to the borrower that it would not otherwise consider. Although the restructuring may take different forms, the Company's objective is to maximize recovery of its investment by granting relief to the borrower. A TDR may include, but is not limited to, one or more of the following: - A transfer from the borrower to the Company of receivables from third parties, real estate, other assets, or an equity interest in the borrower is granted to fully or partially satisfy the loan. - A modification of terms of a debt such as one or a combination of: ◦ The reduction (absolute or contingent) of the stated interest rate. ◦ The extension of the maturity date or dates at a stated interest rate lower than the current market rate for new debt with similar risk. ◦ The reduction (absolute or contingent) of the face amount or maturity amount of debt as stated in the instrument or agreement. ◦ The reduction (absolute or contingent) of accrued interest. For a restructured loan to return to accrual status there needs to be, among other factors, at least 6 months successful payment history and continued satisfactory performance is expected. To this end, the Company typically performs a financial analysis of the credit to determine whether the borrower has the ability to continue to meet payments over the remaining life of the loan. This includes, but is not limited to, a review of financial statements and cash flow analysis of the borrower. Only after determination that the borrower has the ability to perform under the terms of the loans, will the restructured credit be considered for accrual status. Although the Company does not have a policy which specifically addresses when a loan may be removed from TDR classification, as a matter of practice, loans classified as TDRs generally remain classified as such until the loan either reaches maturity or its outstanding balance is paid off. The following tables illustrates TDR additions for the periods indicated: Three Months Ended June 30, 2018 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans — — — — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans — — — — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — — — Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans — $ — $ — — $ — Three Months Ended June 30, 2017 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans 1 178 178 — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans 1 238 238 — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — — — Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans 2 $ 416 $ 416 — $ — Six Months Ended June 30, 2018 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans — — — — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans — — — — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — 1 310 Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans — $ — $ — 1 $ 310 Six Months Ended June 30, 2017 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans 1 $ 69 $ 69 — $ — Government Program Loans 1 178 178 — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans 1 238 238 — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans 1 790 790 — — Agricultural Loans 1 850 850 — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans 5 $ 2,125 $ 2,125 — $ — The Company makes various types of concessions when structuring TDRs including rate discounts, payment extensions, and forbearance. At June 30, 2018 , the Company had 17 restructured loans totaling $7,641,000 as compared to 25 restructured loans totaling $11,362,000 at December 31, 2017 . The following tables summarize TDR activity by loan category for the quarters ended June 30, 2018 and June 30, 2017 (in 000's). Three Months Ended June 30, 2018 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment Total Beginning balance $ 147 $ 1,314 $ 2,525 $ — $ 4,606 $ 1,110 $ — $ 9,702 Defaults — — — — — — — — Additions — — — — — — — — Principal (reductions) additions (37 ) 48 (305 ) — (1,667 ) (100 ) — (2,061 ) Charge-offs — — — — — — — — Ending balance $ 110 $ 1,362 $ 2,220 $ — $ 2,939 $ 1,010 $ — $ 7,641 Allowance for loan loss $ — $ 511 $ 80 $ — $ — $ 706 $ — $ 1,297 Three Months Ended June 30, 2017 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment Total Beginning balance $ 1,212 $ 1,091 $ 2,351 $ — $ 6,960 $ 850 $ 965 $ 13,429 Defaults — — — — — — — — Additions 178 — 238 — — — — 416 Principal reductions (332 ) (29 ) (16 ) — (92 ) (450 ) (965 ) (1,884 ) Charge-offs (3 ) — — — — — — Ending balance $ 1,055 $ 1,062 $ 2,573 $ — $ 6,868 $ 400 $ — $ 11,958 Allowance for loan loss $ 36 $ 216 $ 207 $ — $ — $ 203 $ — $ 662 The following tables summarize TDR activity by loan category for the six months ended June 30, 2018 and June 30, 2017 (in 000's). Six Months Ended June 30, 2018 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment & Other Total Beginning balance $ 436 $ 1,233 $ 2,542 $ — $ 5,951 $ 1,200 $ — $ 11,362 Defaults — — — — (310 ) — — (310 ) Additions — — — — — — — — Principal reductions (263 ) 129 (322 ) — (2,702 ) (190 ) — (3,348 ) Charge-offs (63 ) — — — — — — (63 ) Ending balance $ 110 $ 1,362 $ 2,220 $ — $ 2,939 $ 1,010 $ — $ 7,641 Allowance for loan loss $ — $ 511 $ 80 $ — $ — $ 706 $ — $ 1,297 Six Months Ended June 30, 2017 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment & Other Total Beginning balance $ 1,356 $ 1,454 $ 2,368 $ — $ 6,267 $ — $ 965 $ 12,410 Defaults — — — — — — — — Additions 247 — 238 — 790 850 — 2,125 Principal additions (reductions) (538 ) (392 ) (33 ) — (189 ) (450 ) (965 ) (2,567 ) Charge-offs (10 ) — — — — — — (10 ) Ending balance $ 1,055 $ 1,062 $ 2,573 $ — $ 6,868 $ 400 $ — $ 11,958 Allowance for loan loss $ 36 $ 216 $ 207 $ — $ — $ 203 $ — $ 662 Credit Quality Indicators As part of its credit monitoring program, the Company utilizes a risk rating system which quantifies the risk the Company estimates it has assumed during the life of a loan. The system rates the strength of the borrower and the facility or transaction, and is designed to provide a program for risk management and early detection of problems. For each new credit approval, credit extension, renewal, or modification of existing credit facilities, the Company assigns risk ratings utilizing the rating scale identified in this policy. In addition, on an on-going basis, loans and credit facilities are reviewed for internal and external influences impacting the credit facility that would warrant a change in the risk rating. Each credit facility is to be given a risk rating that takes into account factors that materially affect credit quality. When assigning risk ratings, the Company evaluates two risk rating approaches, a facility rating and a borrower rating as follows: Facility Rating: The facility rating is determined by the analysis of positive and negative factors that may indicate that the quality of a particular loan or credit arrangement requires that it be rated differently from the risk rating assigned to the borrower. The Company assesses the risk impact of these factors: Collateral - The rating may be affected by the type and quality of the collateral, the degree of coverage, the economic life of the collateral, liquidation value and the Company's ability to dispose of the collateral. Guarantees - The value of third party support arrangements varies widely. Unconditional guaranties from persons with demonstrable ability to perform are more substantial than that of closely related persons to the borrower who offer only modest support. Unusual Terms - Credit may be extended on terms that subject the Company to a higher level of risk than indicated in the rating of the borrower. Borrower Rating: The borrower rating is a measure of loss possibility based on the historical, current and anticipated financial characteristics of the borrower in the current risk environment. To determine the rating, the Company considers at least the following factors: - Quality of management - Liquidity - Leverage/capitalization - Profit margins/earnings trend - Adequacy of financial records - Alternative funding sources - Geographic risk - Industry risk - Cash flow risk - Accounting practices - Asset protection - Extraordinary risks The Company assigns risk ratings to loans other than consumer loans and other homogeneous loan pools based on the following scale. The risk ratings are used when determining borrower ratings as well as facility ratings. When the borrower rating and the facility ratings differ, the lowest rating applied is: - Grades 1 and 2 – These grades include loans which are given to high quality borrowers with high credit quality and sound financial strength. Key financial ratios are generally above industry averages and the borrower’s strong earnings history or net worth. These may be secured by deposit accounts or high-grade investment securities. - Grade 3 – This grade includes loans to borrowers with solid credit quality with minimal risk. The borrower’s balance sheet and financial ratios are generally in line with industry averages, and the borrower has historically demonstrated the ability to manage economic adversity. Real estate and asset-based loans assigned this risk rating must have characteristics, which place them well above the minimum underwriting requirements for those departments. Asset-based borrowers assigned this rating must exhibit extremely favorable leverage and cash flow characteristics, and consistently demonstrate a high level of unused borrowing capacity. - Grades 4 and 5 – These include “pass” grade loans to borrowers of acceptable credit quality and risk. The borrower’s balance sheet and financial ratios may be below industry averages, but above the lowest industry quartile. Leverage is above and liquidity is below industry averages. Inadequacies evident in financial performance and/or management sufficiency are offset by readily available features of support, such as adequate collateral, or good guarantors having the liquid assets and/or cash flow capacity to repay the debt. The borrower may have recognized a loss over three or four years, however recent earnings trends, while perhaps somewhat cyclical, are improving and cash

Deposits

Deposits	6 Months Ended
	Jun. 30, 2018
Deposits [Abstract]
Deposits	Deposits Deposits include the following: (in 000's) June 30, 2018 December 31, 2017 Noninterest-bearing deposits $ 281,686 $ 307,299 Interest-bearing deposits: NOW and money market accounts 322,995 234,154 Savings accounts 85,480 81,408 Time deposits: Under $250,000 51,925 51,687 $250,000 and over 14,877 13,145 Total interest-bearing deposits 475,277 380,394 Total deposits $ 756,963 $ 687,693 Total brokered deposits included in time deposits above * $ — $ — * CDARs reciprocal deposits are no longer considered brokered deposits for the Company.

Short-term Borrowings_Other Bor

Short-term Borrowings/Other Borrowings	6 Months Ended
	Jun. 30, 2018
Short term Borrowings/Other Borrowings [Abstract]
Short-term Borrowings/Other Borrowings	Short-term Borrowings/Other Borrowings At June 30, 2018 , the Company had collateralized lines of credit with the Federal Reserve Bank of San Francisco totaling $279,450,000 , as well as Federal Home Loan Bank (FHLB) lines of credit totaling $4,687,000 . At June 30, 2018 , the Company had an uncollateralized line of credit with Pacific Coast Bankers Bank ("PCBB") totaling $10,000,000 , a Fed Funds line of $10,000,000 with Union Bank, and a Fed Funds line of $20,000,000 with Zions First National Bank. All lines of credit are on an “as available” basis and can be revoked by the grantor at any time. These lines of credit have interest rates that are generally tied to the Federal Funds rate or are indexed to short-term U.S. Treasury rates or LIBOR. FHLB advances are collateralized by the Company’s stock in the FHLB, investment securities, and certain qualifying mortgage loans. As of June 30, 2018 , $7,130,000 in investment securities at FHLB were pledged as collateral for FHLB advances. Additionally, $415,304,000 in secured and unsecured loans were pledged at June 30, 2018 , as collateral for borrowing lines with the Federal Reserve Bank. At June 30, 2018 , the Company had no outstanding borrowings. At December 31, 2017 , the Company had collateralized lines of credit with the Federal Reserve Bank of San Francisco totaling $305,236,000 , as well as Federal Home Loan Bank (“FHLB”) lines of credit totaling $13,363,000 . At December 31, 2017 , the Company had an uncollateralized line of credit with Pacific Coast Bankers Bank ("PCBB") totaling $10,000,000 and a Fed Funds line of $20,000,000 with Zions First National Bank. All lines of credit are on an “as available” basis and can be revoked by the grantor at any time. These lines of credit generally have interest rates tied to the Federal Funds rate or are indexed to short-term U.S. Treasury rates or LIBOR. FHLB advances are collateralized by the Company’s stock in the FHLB, investment securities, and certain qualifying mortgage loans. As of December 31, 2017 , $17,049,000 in investment securities at FHLB were pledged as collateral for FHLB advances. Additionally, $473,364,000 in secured and unsecured loans were pledged at December 31, 2017 , as collateral for used and unused borrowing lines with the Federal Reserve Bank. At December 31, 2017 , the Company had no outstanding borrowings.

Supplemental Cash Flow Disclosu

Supplemental Cash Flow Disclosures	6 Months Ended
	Jun. 30, 2018
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Disclosures	Supplemental Cash Flow Disclosures Six months ended June 30, (in 000's) 2018 2017 Cash paid during the period for: Interest $ 1,137 $ 886 Income taxes $ 4,800 $ 4,410 Noncash investing activities: Unrealized gains on unrecognized post retirement costs $ 27 $ 26 Unrealized loss on available for sale securities $ (428 ) $ 355 Unrealized gains on TRUPs $ 295 $ — Stock dividends issued $ — $ 1,220 Cash dividend declared $ 1,520 $ 845 Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income $ 1,482 $ — Adoption of ASU 2016-01: recognition of previously unrealized losses within CRA Fund $ 184 $ —

Dividends on Common Stock

Dividends on Common Stock	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Dividends on Common Stock	Dividends on Common Stock On March 27, 2018, the Company’s Board of Directors declared a cash dividend of $0.09 per share on the Company's common stock. The dividend was payable on April 19, 2018, to shareholders of record as of April 9, 2018. Approximately $1,520,000 was transfered from retained earnings to dividends payable to allow for distribution of the dividend to shareholders. On June 26, 2018, the Company's Board of Directors declared a regular quarterly cash dividend $0.09 per share on the Company's common stock. The dividend was payable on July 19, 2018, to shareholders of record as of July 9, 2018. Approximately $1,520,000 was transfered from retained earnings to dividends payable to allow for distribution of the dividend to shareholders. During 2017, the Board of Directors authorized the repurchase of up to $3 million of the outstanding common stock of the Company. The timing of the purchases will depend on certain factors, including but not limited to, market conditions and prices, available funds, and alternative uses of capital. The stock repurchase program may be carried out through open-market purchases, block trades, or negotiated private transactions. At this time, no shares have been repurchased.

Net Income per Common Share

Net Income per Common Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Income per Common Share	Net Income per Common Share The following table provides a reconciliation of the numerator and the denominator of the basic EPS computation with the numerator and the denominator of the diluted EPS computation: Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Net income (000's, except per share amounts) $ 3,392 $ 2,492 $ 6,549 $ 4,263 Weighted average shares issued 16,899,968 16,875,336 16,895,135 16,792,083 Add: dilutive effect of stock options 57,314 19,037 40,776 16,650 Weighted average shares outstanding adjusted for potential dilution 16,957,282 16,894,373 16,935,911 16,808,733 Basic earnings per share $ 0.20 $ 0.15 $ 0.39 $ 0.25 Diluted earnings per share $ 0.20 $ 0.15 $ 0.39 $ 0.25 Anti-dilutive stock options excluded from earnings per share calculation 60,000 30,000 103,000 30,000

Taxes on Income

Taxes on Income	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Taxes on Income	Taxes on Income The Company periodically reviews its tax positions under the accounting standards related to uncertainty in income taxes, which defines the criteria that an individual tax position would have to meet for some or all of the income tax benefit to be recognized in a taxable entity’s financial statements. Under the guidelines, an entity should recognize the financial statement benefit of a tax position if it determines that it is more likely than not that the position will be sustained on examination. The term “more likely than not” means a likelihood of more than 50 percent . In assessing whether the more-likely-than-not criterion is met, the entity should assume that the tax position will be reviewed by the applicable taxing authority and all available information is known to the taxing authority. The Company periodically evaluates its deferred tax assets to determine whether a valuation allowance is required based upon a determination that some or all of the deferred assets may not be ultimately realized. At June 30, 2018 and December 31, 2017 , the Company had no recorded valuation allowance. The Company and its subsidiary file income tax returns in the U.S federal jurisdiction, and several states within the U.S. There are no filings in foreign jurisdictions. During 2014, the Company began the process to amend its state tax returns for the years 2009 through 2012 to file a combined report on a unitary basis with the Company and USB Investment Trust. The amended return for 2009 was filed during 2014, the 2010 return was filed during 2015, and the amended returns for 2011 and 2012 were filed in 2016. The Company is no longer subject to examination for years before 2013. As of June 30, 2018 , the Company is unaware of any change in tax positions as a result of the IRS examination. The Company's policy is to recognize any interest or penalties related to uncertain tax positions in income tax expense. Interest and penalties recognized during the periods ended June 30, 2018 and 2017 were insignificant. The Company reported a provision for income taxes of $2,653,000 for the six months ended June 30, 2018 as compared to the $2,845,000 provision reported in the comparable period of 2017. The effective tax rate was 28.83% for the six months ended June 30, 2018 as compared to 40.03% for the comparable period of 2017. The disparity between the effective tax rates for 2018 as compared to 2017 is primarily due to a decrease in the federal corporate tax rate from 34% in 2017 to 21% in 2018 related to the Tax Cuts and Jobs Act of 2017.

Junior Subordinated Debt_Trust

Junior Subordinated Debt/Trust Preferred Securities	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Junior Subordinated Debt/Trust Preferred Securities	Junior Subordinated Debt/Trust Preferred Securities Effective September 30, 2009 and beginning with the quarterly interest payment due October 1, 2009, the Company elected to defer interest payments on the Company's $15.0 million of junior subordinated debentures relating to its trust preferred securities. The terms of the debentures and trust indentures allow for the Company to defer interest payments for up to 20 consecutive quarters without default or penalty. During the period that the interest deferrals were elected, the Company continued to record interest expense associated with the debentures. As of June 30, 2014, the Company ended the extension period, paid all accrued and unpaid interest, and is currently making quarterly interest payments. The Company may redeem the junior subordinated debentures at any time at par. During August 2015, the Bank purchased $3.0 million of the Company's junior subordinated debentures related to the Company's trust preferred securities at a fair value discount of 40% . Subsequently, in September 2015, the Company purchased those shares from the Bank and canceled $3.0 million in par value of the junior subordinated debentures, realizing a $78,000 gain on redemption. The contractual principal balance of the Company's debentures relating to its trust preferred securities is $12.0 million as of June 30, 2018 . The fair value guidance generally permits the measurement of selected eligible financial instruments at fair value at specified election dates. Effective January 1, 2008, the Company elected the fair value option for its junior subordinated debt issued under USB Capital Trust II. The Company believes the election of fair value accounting for the junior subordinated debentures better reflects the true economic value of the debt instrument on the balance sheet. The rate paid on the junior subordinated debt issued under USB Capital Trust II is 3-month LIBOR plus 129 basis points, and is adjusted quarterly. At June 30, 2018 the Company performed a fair value measurement analysis on its junior subordinated debt using a cash flow model approach to determine the present value of those cash flows. The cash flow model utilizes the forward 3-month LIBOR curve to estimate future quarterly interest payments due over the thirty -year life of the debt instrument. These cash flows were discounted at a rate which incorporates a current market rate for similar-term debt instruments, adjusted for additional credit and liquidity risks associated with the junior subordinated debt. We believe the 6.05% discount rate used represents what a market participant would consider under the circumstances based on current market assumptions. At June 30, 2018 , the total cumulative gain recorded on the debt is $2,447,000 . Effective January 1, 2018, the Company elected ASU 2016-01 which modified the recognition and measurement of Financial Assets and Liabilities. Upon adoption of the standard, the fair value determined for the period would separately present in other comprehensive income the portion of the total change in the fair value resulting from a change in the instrument-specific credit risk. As of January 1, 2018 a cumulative effect adjustment of $1,482,000 was made to accumulated other comprehensive income. The net fair value calculation performed as of June 30, 2018 resulted in a pretax loss adjustment of $367,000 for the six months ended June 30, 2018 , compared to a pretax loss adjustment of $601,000 ( $354,000 , net of tax) for the six months ended June 30, 2017 . As part of the adoption of ASU 2016-01, for the six months ended June 30, 2018 , net fair value gains and losses are separately identified as the portion attributed to non-instrument specific credit risk, recognized as a component of noninterest income on the consolidated statements of income, and instrument specific credit risk, recognized in other comprehensive income. For the six months ended June 30, 2018 , the net $367,000 fair value loss adjustment was separately presented as a $661,000 loss ( $464,000 , net of tax) recognized on the consolidated statements of income, and a $295,000 gain ( $207,000 , net of tax) associated with the instrument specific credit risk recognized in other comprehensive income. The adoption of ASU 2016-01's resulting impact on basic and diluted earnings per share was $0.01 . The net fair value calculation performed at June 30, 2018 resulted in a pretax loss adjustment of $464,000 for the three months ended June 30, 2018 , compared to a pretax loss adjustment of $264,000 ( $126,000 , net of tax) for the three months ended June 30, 2017 . As part of the adoption of ASU 2016-01, for the three months ended June 30, 2018 , net fair value gains and losses are separately identified as the portion attributed to non-instrument specific credit risk, recognized as a component of noninterest income on the consolidated statements of income, and instrument specific credit risk, recognized in other comprehensive income. For the three months ended June 30, 2018 , the net $464,000 fair value loss adjustment was separately presented as a $192,000 loss ( $135,000 , net of tax) recognized on the consolidated statements of income, and a $272,000 loss ( $192,000 , net of tax) associated with the instrument specific credit risk recognized in other comprehensive income. The adoption of ASU 2016-01's resulting impact on basic and diluted earnings per share was $0.01 .

Fair Value Measurements and Dis

Fair Value Measurements and Disclosure	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements and Disclosure	Fair Value Measurements and Disclosure The following summary disclosures are made in accordance with the guidance provided by ASC Topic 825, Fair Value Measurements and Disclosures (formerly Statement of Financial Accounting Standards No. 107, Disclosures about Fair Value of Financial Instruments ), which requires the disclosure of fair value information about both on- and off-balance sheet financial instruments where it is practicable to estimate that value. Generally accepted accounting guidance clarifies the definition of fair value, describes methods used to appropriately measure fair value in accordance with generally accepted accounting principles and expands fair value disclosure requirements. This guidance applies whenever other accounting pronouncements require or permit fair value measurements. The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels (Level 1, Level 2, and Level 3). Level 1 inputs are unadjusted quoted prices in active markets (as defined) for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability, and reflect the reporting entity’s own assumptions about the assumptions that market participants would use in pricing the asset or liability (including assumptions about risk). In accordance with the prospective adoption of ASU No. 2016-01, the fair value of loans as of June 30, 2018 was measured using an exit price notion. The fair value of loans as of December 31, 2017 was measured using an entry price notion. The table below is a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized at the periods indicated: June 30, 2018 (in 000's) Carrying Amount Estimated Fair Value Quoted Prices In Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Financial Assets: Cash and cash equivalents $ 191,128 $ 191,128 $ 191,128 $ — $ — AFS Investment securities 56,724 56,724 — 56,724 — Marketable equity securities 3,659 3,659 3,659 — — Loans 565,926 555,193 — — 555,193 Accrued interest receivable 8,392 8,392 — 8,392 — Financial Liabilities: Deposits: Noninterest-bearing 281,686 281,686 281,686 — — NOW and money market 322,995 322,995 322,995 — — Savings 85,480 85,480 85,480 — — Time deposits 66,802 66,159 — — 66,159 Total deposits 756,963 756,320 690,161 66,159 Junior subordinated debt 10,125 10,125 — — 10,125 Accrued interest payable 43 43 — 43 — December 31, 2017 (in 000's) Carrying Amount Estimated Fair Value Quoted Prices In Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Financial Assets: Cash and cash equivalents $ 107,934 $ 107,934 $ 107,934 $ — $ — Investment securities 41,985 45,722 3,737 41,985 — Loans 593,123 588,938 — — 588,938 Accrued interest receivable 6,526 6,526 — 6,526 — Financial Liabilities: Deposits: Noninterest-bearing 307,299 307,299 307,299 — — NOW and money market 234,154 234,154 234,154 — — Savings 81,408 81,408 81,408 — — Time deposits 64,832 64,387 — — 64,387 Total deposits 687,693 687,248 622,861 — 64,387 Junior subordinated debt 9,730 9,730 — — 9,730 Accrued interest payable 44 44 — 44 — The Company performs fair value measurements on certain assets and liabilities as the result of the application of current accounting guidelines. Some fair value measurements, such as investment securities and junior subordinated debt are performed on a recurring basis, while others, such as impairment of loans, other real estate owned, goodwill and other intangibles, are performed on a nonrecurring basis. The Company’s Level 1 financial assets consist of money market funds and highly liquid mutual funds for which fair values are based on quoted market prices. The Company’s Level 2 financial assets include highly liquid debt instruments of U.S. government agencies, collateralized mortgage obligations, and debt obligations of states and political subdivisions, whose fair values are obtained from readily-available pricing sources for the identical or similar underlying security that may, or may not, be actively traded. The Company’s Level 3 financial assets include certain instruments where the assumptions may be made by us or third parties about assumptions that market participants would use in pricing the asset or liability. From time to time, the Company recognizes transfers between Level 1, 2, and 3 when a change in circumstances warrants a transfer. There were no transfers in or out of Level 1 and Level 2 fair value measurements during the three month period ended June 30, 2018 . The following methods and assumptions were used in estimating the fair values of financial instruments measured at fair value on a recurring and non-recurring basis: Investment Securities – Available for sale and marketable equity securities are valued based upon open-market price quotes obtained from reputable third-party brokers that actively make a market in those securities. Market pricing is based upon specific CUSIP identification for each individual security. To the extent there are observable prices in the market, the mid-point of the bid/ask price is used to determine fair value of individual securities. If that data is not available for the last 30 days, a Level 2-type matrix pricing approach based on comparable securities in the market is utilized. Level 2 pricing may include using a forward spread from the last observable trade or may use a proxy bond like a TBA mortgage to come up with a price for the security being valued. Changes in fair market value are recorded through other comprehensive loss as the securities are available for sale. Impaired Loans - Fair value measurements for collateral dependent impaired loans are performed pursuant to authoritative accounting guidance and are based upon either collateral values supported by appraisals and observed market prices. Collateral dependent loans are measured for impairment using the fair value of the collateral. Changes are recorded directly as an adjustment to current earnings. Other Real Estate Owned - Nonrecurring adjustments to certain commercial and residential real estate properties classified as other real estate owned (OREO) are measured at the lower of carrying amount or fair value, less costs to sell. Fair values are generally based on third party appraisals of the property, resulting in a Level 3 classification. In cases where the carrying amount exceeds the fair value, less costs to sell, an impairment loss is recognized. Junior Subordinated Debt – The fair value of the junior subordinated debt was determined based upon a discounted cash flows model utilizing observable market rates and credit characteristics for similar debt instruments. In its analysis, the Company used characteristics that market participants generally use, and considered factors specific to (a) the liability, (b) the principal (or most advantageous) market for the liability, and (c) market participants with whom the reporting entity would transact in that market. Cash flows are discounted at a rate which incorporates a current market rate for similar-term debt instruments, adjusted for credit and liquidity risks associated with similar junior subordinated debt and circumstances unique to the Company. The Company believes that the subjective nature of theses inputs, due primarily to the current economic environment, require the junior subordinated debt to be classified as a Level 3 fair value. The following table provides a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a recurring basis at June 30, 2018 and December 31, 2017 : June 30, 2018 December 31, 2017 Financial Instrument Valuation Technique Unobservable Input Weighted Average Financial Instrument Valuation Technique Unobservable Input Weighted Average Junior Subordinated Debt Discounted cash flow Discount Rate 6.05% Junior Subordinated Debt Discounted cash flow Discount Rate 5.81% Management believes that the credit risk adjusted spread utilized in the fair value measurement of the junior subordinated debentures carried at fair value is indicative of the nonperformance risk premium a willing market participant would require under current market conditions, that is, the inactive market. Management attributes the change in fair value of the junior subordinated debentures during the period to market changes in the nonperformance expectations and pricing of this type of debt, and not as a result of changes to our entity-specific credit risk. The narrowing of the credit risk adjusted spread above the Company’s contractual spreads has primarily contributed to the negative fair value adjustments. Generally, an increase in the credit risk adjusted spread and/or a decrease in the three month LIBOR swap curve will result in positive fair value adjustments (and decrease the fair value measurement). Conversely, a decrease in the credit risk adjusted spread and/or an increase in the three month LIBOR swap curve will result in negative fair value adjustments (and increase the fair value measurement). The increase in discount rate between the periods ended June 30, 2018 and December 31, 2017 is primarily due to increases in rates for similar debt instruments. The following tables summarize the Company’s assets and liabilities that were measured at fair value on a recurring and non-recurring basis as of June 30, 2018 (in 000’s): Description of Assets June 30, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) AFS Securities (2): U.S. Government agencies $ 30,351 $ — $ 30,351 $ — U.S. Government collateralized mortgage obligations 26,373 — 26,373 — Marketable equity securities (2) 3,659 3,659 — — Total investment securities $ 60,383 $ 3,659 $ 56,724 $ — Total $ 60,383 $ 3,659 $ 56,724 $ — Description of Liabilities June 30, 2018 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) Junior subordinated debt (2) $ 10,125 — — $ 10,125 Total $ 10,125 — — $ 10,125 (1) Nonrecurring (2) Recurring The following tables summarize the Company’s assets and liabilities that were measured at fair value on a recurring and non-recurring basis as of December 31, 2017 (in 000’s): Description of Assets December 31, 2017 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) AFS Securities (2): U.S. Government agencies $ 19,954 $ — $ 19,954 $ — U.S. Government collateralized mortgage obligations 22,031 — 22,031 — Marketable equity securities (2) 3,737 3,737 — — Total investment securities 45,722 3,737 41,985 $ — Total $ 45,722 $ 3,737 $ 41,985 $ — Description of Liabilities December 31, 2017 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) Junior subordinated debt (2) $ 9,730 $ — $ — $ 9,730 Total $ 9,730 $ — $ — $ 9,730 (1) Nonrecurring (2) Recurring The Company did not record a write-down on other real estate owned during the six months ended June 30, 2018 or the year ended December 31, 2017 . There were no assets measured at fair value on a non-recurring basis as of the six months ended June 30, 2018 or the year ended December 31, 2017 . The following tables provide a reconciliation of assets and liabilities at fair value using significant unobservable inputs (Level 3) on a recurring basis during the three and six months ended June 30, 2018 and 2017 (in 000’s): Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Reconciliation of Liabilities: Junior Subordinated Debt Junior Junior Subordinated Debt Junior Subordinated Debt Beginning balance $ 9,641 $ 9,171 $ 9,730 $ 8,832 Gross loss included in earnings 192 264 661 601 Gross loss (gain) related to changes in instrument specific credit risk 272 — (295 ) — Change in accrued interest 20 6 29 8 Ending balance $ 10,125 $ 9,441 $ 10,125 $ 9,441 The amount of total (gain) loss for the period included in earnings attributable to the change in unrealized gains or losses relating to liabilities still held at the reporting date $ 192 $ 264 $ 661 $ 601

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets At June 30, 2018 , the Company had goodwill in the amount of $4,488,000 in connection with various business combinations and purchases. This amount was unchanged from the balance of $4,488,000 at December 31, 2017 . While goodwill is not amortized, the Company does conduct periodic impairment analysis on goodwill at least annually or more often as conditions require. The Company performed its analysis of goodwill impairment and concluded goodwill was not impaired at June 30, 2018 .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The components of accumulated other comprehensive income, included in shareholders’ equity, are as follows: (in 000's) June 30, 2018 December 31, 2017 Net unrealized loss on available for sale securities Unfunded status of the supplemental retirement plans Net unrealized gain on junior subordinated debentures Net unrealized loss on available for sale securities Unfunded status of the supplemental retirement plans Net unrealized gain on junior subordinated debentures Beginning balance $ (248 ) $ (462 ) $ — $ (221 ) $ (383 ) $ — Reclassifications upon adoption of ASU 2016-01 184 — 1,482 — — — Current period comprehensive (loss) income (300 ) 19 207 (27 ) (79 ) — Ending balance $ (364 ) $ (443 ) $ 1,689 $ (248 ) $ (462 ) $ — Accumulated other comprehensive income (loss) $ 882 $ (710 )

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued. Recognized subsequent events are events or transactions that provide additional evidence about conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements. Nonrecognized subsequent events are events that provide evidence about conditions that did not exist at the date of the balance sheet but arose after that date. Management has reviewed events occurring through the date the consolidated financial statements were issued and have identified no subsequent events requiring disclosure.

Organization and Summary of S22

Organization and Summary of Significant Accounting and Reporting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards : In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”). The guidance affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 was effective for the Company on January 1, 2018 and resulted in separate classification of equity securities previously included in available for sale securities on the consolidated balance sheets with changes in the fair value of the equity securities captured in the consolidated statements of income. See Note 2 – Investment Securities for disclosures related to equity securities. Adoption of the standard also resulted in the use of an exit price rather than an entrance price to determine the fair value of loans not measured at fair value on a non-recurring basis in the consolidated balance sheets. See Note 11 – Fair Value Disclosures for further information regarding the valuation of these loans. Additionally, adoption of the standard resulted in separately recognizing the instrument-specific credit risk associated with the Company's Junior Subordinated Debt. See Note 10 - Junior Subordinated Debt / Trust Preferred Securities for additional information. In February 2016, FASB issued ASU 2016-02, Leases (Topic 842). The FASB is issuing this Update to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. To meet that objective, the FASB is amending the FASB Accounting Standards Codification® and creating Topic 842, Leases. This Update, along with IFRS 16, Leases, are the results of the FASB’s and the International Accounting Standards Board’s (IASB’s) efforts to meet that objective and improve financial reporting. This ASU will be effective for public business entities for annual periods beginning after December 15, 2018 (i.e., calendar periods beginning on January 1, 2019), and interim periods therein. Although an estimate of the impact of the new leasing standard has not yet been determined, the Company expects a significant new lease asset and related lease liability on the consolidated balance sheet due to the number of leased branches and standalone ATM sites the Company currently has that are accounted for under current operating lease guidance. The Company has implemented a lease review team and is in the process of determining the best vendor to assist in the calculation and implementation of this standard. In June 2016, FASB issued ASU 2016-13, Financial Instruments- Credit Losses (Topic 326). The FASB is issuing this Update to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The Update requires enhanced disclosures and judgments in estimating credit losses and also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. This amendment is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company has established a project team for the implementation of this new standard. The team has started by working with a vendor to put a new Allowance for Loan Loss software in place and is collecting additional historical data to estimate the impact of this standard. An estimate of the impact of this standard has not yet been determined, however, the impact on the Company's consolidated financial statements is expected to be significant. In January 2017, FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350). The FASB is issuing this Update to eliminate the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge. Instead, entities will record an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. This ASU will be effective for public business entities for annual periods beginning after December 15, 2019 (i.e. calendar periods beginning on January 1, 2020, and interim periods therein. The Company does not expect any impact on the Company's consolidated financial statements resulting from the adoption of this Update. In March 2017, FASB issued ASU 2017-08 - Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. The provisions of the update require premiums recognized upon the purchase of callable debt securities to be amortized to the earliest call date in order to avoid losses recognized upon call. For public business entities that are SEC filers the amendments of the update will become effective in fiscal years beginning after December 15, 2018. The Company does not expect the requirements of this Update to have a material impact on the Company’s financial position, results of operations or cash flows.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Comparison of amortized cost and fair value of securities available for sale	Following is a comparison of the amortized cost and fair value of securities available-for-sale, as of June 30, 2018 and December 31, 2017 : (in 000's) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Carrying Amount) June 30, 2018 Securities available for sale: U.S. Government agencies $ 30,327 $ 182 $ (158 ) $ 30,351 U.S. Government sponsored entities & agencies collateralized by mortgage obligations 26,914 37 (578 ) 26,373 Total securities available for sale $ 57,241 $ 219 $ (736 ) $ 56,724 (in 000's) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (Carrying Amount) December 31, 2017 Securities available for sale: U.S. Government agencies $ 19,683 $ 312 $ (41 ) $ 19,954 U.S. Government sponsored entities & agencies collateralized by mortgage obligations 22,391 56 (416 ) 22,031 Total securities available for sale $ 42,074 $ 368 $ (457 ) $ 41,985
Contractual maturities on collateralized mortgage obligation	The amortized cost and fair value of securities available for sale at June 30, 2018 , by contractual maturity, are shown below. Actual maturities may differ from contractual maturities because issuers have the right to call or prepay obligations with or without call or prepayment penalties. Contractual maturities on collateralized mortgage obligations cannot be anticipated due to allowed paydowns. June 30, 2018 Amortized Cost Fair Value (Carrying Amount) (in 000's) Due in one year or less $ — $ — Due after one year through five years — — Due after five years through ten years 6,045 6,031 Due after ten years 24,282 24,320 Collateralized mortgage obligations 26,914 26,373 $ 57,241 $ 56,724
Temporarily impaired investment securities	The following summarizes temporarily impaired investment securities: (in 000's) Less than 12 Months 12 Months or More Total June 30, 2018 Fair Value (Carrying Amount) Unrealized Losses Fair Value (Carrying Amount) Unrealized Losses Fair Value (Carrying Amount) Unrealized Losses Securities available for sale: U.S. Government agencies $ 12,673 $ (55 ) 7,464 (103 ) $ 20,137 $ (158 ) U.S. Government sponsored entities & agencies collateralized by mortgage obligations 7,188 (204 ) 12,134 (374 ) 19,322 (578 ) Total impaired securities $ 19,861 $ (259 ) $ 19,598 $ (477 ) $ 39,459 $ (736 ) December 31, 2017 Securities available for sale: U.S. Government agencies $ 1,728 $ (3 ) $ 6,625 $ (38 ) $ 8,353 $ (41 ) U.S. Government sponsored entities & agencies collateralized by mortgage obligations 7,483 (154 ) 13,583 (262 ) 21,066 (416 ) Total impaired securities $ 9,211 $ (157 ) $ 20,208 $ (300 ) $ 29,419 $ (457 )

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Loans	Loans are comprised of the following: (in 000's) June 30, 2018 December 31, 2017 Commercial and Business Loans $ 57,047 $ 46,065 Government Program Loans 908 961 Total Commercial and Industrial 57,955 47,026 Real Estate – Mortgage: Commercial Real Estate 212,513 221,032 Residential Mortgages 70,512 84,804 Home Improvement and Home Equity loans 386 457 Total Real Estate Mortgage 283,411 306,293 Real Estate Construction and Development 108,571 122,970 Agricultural 56,662 59,481 Installment and Student Loans 67,397 65,581 Total Loans $ 573,996 $ 601,351
Delinquent loans	The following is a summary of delinquent loans at June 30, 2018 (in 000's): June 30, 2018 Loans 30-60 Days Past Due Loans 61-89 Days Past Due Loans 90 or More Days Past Due Total Past Due Loans Current Loans Total Loans Accruing Loans 90 or More Days Past Due Commercial and Business Loans $ — $ — $ — $ — $ 57,047 $ 57,047 $ — Government Program Loans — — — — 908 908 — Total Commercial and Industrial — — — — 57,955 57,955 — Commercial Real Estate Loans — — — — 212,513 212,513 — Residential Mortgages — — — — 70,512 70,512 — Home Improvement and Home Equity Loans — — — — 386 386 — Total Real Estate Mortgage — — — — 283,411 283,411 — Real Estate Construction and Development Loans — — 8,825 8,825 99,746 108,571 — Agricultural Loans — — — — 56,662 56,662 — Consumer Loans 231 83 — 314 66,929 67,243 67 Overdraft Protection Lines — — — — 38 38 — Overdrafts — — — — 116 116 — Total Installment 231 83 — 314 67,083 67,397 67 Total Loans $ 231 $ 83 $ 8,825 $ 9,139 $ 564,857 $ 573,996 $ 67 The following is a summary of delinquent loans at December 31, 2017 (in 000's): December 31, 2017 Loans 30-60 Days Past Due Loans 61-89 Days Past Due Loans 90 or More Days Past Due Total Past Due Loans Current Loans Total Loans Accruing Loans 90 or More Days Past Due Commercial and Business Loans $ — $ — $ 212 $ 212 $ 45,853 $ 46,065 $ — Government Program Loans — — — — 961 961 — Total Commercial and Industrial — — 212 212 46,814 47,026 — Commercial Real Estate Loans 779 — — 779 220,253 221,032 — Residential Mortgages — — 94 94 84,710 84,804 — Home Improvement and Home Equity Loans — — — — 457 457 — Total Real Estate Mortgage 779 — 94 873 305,420 306,293 — Real Estate Construction and Development Loans — — 360 360 122,610 122,970 360 Agricultural Loans — — — — 59,481 59,481 — Consumer Loans — — — — 65,446 65,446 125 Overdraft Protection Lines — — — — 38 38 — Overdrafts — — — — 97 97 — Total Installment — — — — 65,581 65,581 125 Total Loans $ 779 $ — $ 666 $ 1,445 $ 599,906 $ 601,351 $ 485
Nonaccrual loan balances	The following is a summary of nonaccrual loan balances at June 30, 2018 and December 31, 2017 (in 000's). June 30, 2018 December 31, 2017 Commercial and Business Loans $ — $ 212 Government Program Loans — — Total Commercial and Industrial — 212 Commercial Real Estate Loans 438 454 Residential Mortgages — 288 Home Improvement and Home Equity Loans — — Total Real Estate Mortgage 438 742 Real Estate Construction and Development Loans 11,764 4,342 Agricultural Loans — — Consumer Loans — — Overdraft Protection Lines — — Overdrafts — — Total Installment — — Total Loans $ 12,202 $ 5,296
Impaired loans	The following is a summary of impaired loans at June 30, 2018 (in 000's). June 30, 2018 Unpaid Contractual Principal Balance Recorded Investment With No Allowance (1) Recorded Investment With Allowance (1) Total Recorded Investment Related Allowance Average Recorded Investment (2) Interest Recognized (2) Commercial and Business Loans $ 2,937 $ 535 $ 2,414 $ 2,949 $ 444 $ 3,171 $ 97 Government Program Loans 308 309 — 309 — 226 10 Total Commercial and Industrial 3,245 844 2,414 3,258 444 3,397 107 Commercial Real Estate Loans 1,362 — 1,367 1,367 510 1,409 34 Residential Mortgages 2,219 400 1,828 2,228 80 2,604 60 Home Improvement and Home Equity Loans — — — — — — — Total Real Estate Mortgage 3,581 400 3,195 3,595 590 4,013 94 Real Estate Construction and Development Loans 11,764 11,764 — 11,764 — 7,447 205 Agricultural Loans 1,010 1 1,016 1,017 706 1,112 43 Consumer Loans 62 62 — 62 — 49 3 Overdraft Protection Lines — — — — — — — Overdrafts — — — — — — — Total Installment 62 62 — 62 — 49 3 Total Impaired Loans $ 19,662 $ 13,071 $ 6,625 $ 19,696 $ 1,740 $ 16,018 $ 452 (1) The recorded investment in loans includes accrued interest receivable of $ 34 . (2) Information is based on the six month period ended June 30, 2018 . The following is a summary of impaired loans at December 31, 2017 (in 000's). December 31, 2017 Unpaid Contractual Principal Balance Recorded Investment With No Allowance (1) Recorded Investment With Allowance (1) Total Recorded Investment Related Allowance Average Recorded Investment (2) Interest Recognized (2) Commercial and Business Loans $ 3,255 $ 381 $ 2,887 $ 3,268 $ 534 $ 3,791 $ 229 Government Program Loans 49 50 — 50 — 219 5 Total Commercial and Industrial 3,304 431 2,887 3,318 534 4,010 234 Commercial Real Estate Loans 1,233 — 1,245 1,245 385 1,138 79 Residential Mortgages 3,040 1,199 1,852 3,051 103 2,745 142 Home Improvement and Home Equity Loans — — — — — — — Total Real Estate Mortgage 4,273 1,199 3,097 4,296 488 3,883 221 Real Estate Construction and Development Loans 5,951 5,972 — 5,972 — 6,660 418 Agricultural Loans 1,200 1 1,203 1,204 866 1,179 48 Consumer Loans — — — — — 241 — Overdraft Protection Lines — — — — — — — Overdrafts — — — — — — — Total Installment — — — — — 241 — Total Impaired Loans $ 14,728 $ 7,603 $ 7,187 $ 14,790 $ 1,888 $ 15,973 $ 921 (1) The recorded investment in loans includes accrued interest receivable of $ 62 . (2) Information is based on the twelve month period ended December 31, 2017 .
Troubled debt restructuring activity	The following tables illustrates TDR additions for the periods indicated: Three Months Ended June 30, 2018 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans — — — — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans — — — — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — — — Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans — $ — $ — — $ — Three Months Ended June 30, 2017 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans 1 178 178 — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans 1 238 238 — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — — — Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans 2 $ 416 $ 416 — $ — Six Months Ended June 30, 2018 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans — $ — $ — — $ — Government Program Loans — — — — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans — — — — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans — — — 1 310 Agricultural Loans — — — — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans — $ — $ — 1 $ 310 Six Months Ended June 30, 2017 ($ in 000's) Number of Pre- Post- Number of Contracts which Defaulted During Period Recorded Investment on Defaulted TDRs Troubled Debt Restructurings Commercial and Business Loans 1 $ 69 $ 69 — $ — Government Program Loans 1 178 178 — — Commercial Real Estate Term Loans — — — — — Single Family Residential Loans 1 238 238 — — Home Improvement and Home Equity Loans — — — — — Real Estate Construction and Development Loans 1 790 790 — — Agricultural Loans 1 850 850 — — Consumer Loans — — — — — Overdraft Protection Lines — — — — — Total Loans 5 $ 2,125 $ 2,125 — $ —
TDR activity by loan category	The following tables summarize TDR activity by loan category for the quarters ended June 30, 2018 and June 30, 2017 (in 000's). Three Months Ended June 30, 2018 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment Total Beginning balance $ 147 $ 1,314 $ 2,525 $ — $ 4,606 $ 1,110 $ — $ 9,702 Defaults — — — — — — — — Additions — — — — — — — — Principal (reductions) additions (37 ) 48 (305 ) — (1,667 ) (100 ) — (2,061 ) Charge-offs — — — — — — — — Ending balance $ 110 $ 1,362 $ 2,220 $ — $ 2,939 $ 1,010 $ — $ 7,641 Allowance for loan loss $ — $ 511 $ 80 $ — $ — $ 706 $ — $ 1,297 Three Months Ended June 30, 2017 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment Total Beginning balance $ 1,212 $ 1,091 $ 2,351 $ — $ 6,960 $ 850 $ 965 $ 13,429 Defaults — — — — — — — — Additions 178 — 238 — — — — 416 Principal reductions (332 ) (29 ) (16 ) — (92 ) (450 ) (965 ) (1,884 ) Charge-offs (3 ) — — — — — — Ending balance $ 1,055 $ 1,062 $ 2,573 $ — $ 6,868 $ 400 $ — $ 11,958 Allowance for loan loss $ 36 $ 216 $ 207 $ — $ — $ 203 $ — $ 662 The following tables summarize TDR activity by loan category for the six months ended June 30, 2018 and June 30, 2017 (in 000's). Six Months Ended June 30, 2018 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment & Other Total Beginning balance $ 436 $ 1,233 $ 2,542 $ — $ 5,951 $ 1,200 $ — $ 11,362 Defaults — — — — (310 ) — — (310 ) Additions — — — — — — — — Principal reductions (263 ) 129 (322 ) — (2,702 ) (190 ) — (3,348 ) Charge-offs (63 ) — — — — — — (63 ) Ending balance $ 110 $ 1,362 $ 2,220 $ — $ 2,939 $ 1,010 $ — $ 7,641 Allowance for loan loss $ — $ 511 $ 80 $ — $ — $ 706 $ — $ 1,297 Six Months Ended June 30, 2017 Commercial and Industrial Commercial Real Estate Residential Mortgages Home Improvement and Home Equity Real Estate Construction Development Agricultural Installment & Other Total Beginning balance $ 1,356 $ 1,454 $ 2,368 $ — $ 6,267 $ — $ 965 $ 12,410 Defaults — — — — — — — — Additions 247 — 238 — 790 850 — 2,125 Principal additions (reductions) (538 ) (392 ) (33 ) — (189 ) (450 ) (965 ) (2,567 ) Charge-offs (10 ) — — — — — — (10 ) Ending balance $ 1,055 $ 1,062 $ 2,573 $ — $ 6,868 $ 400 $ — $ 11,958 Allowance for loan loss $ 36 $ 216 $ 207 $ — $ — $ 203 $ — $ 662
Credit risk rating for commercial, construction and non-consumer related loans	The following tables summarize the credit risk ratings for commercial, construction, and other non-consumer related loans for June 30, 2018 and December 31, 2017 : Commercial and Industrial Commercial Real Estate Real Estate Construction and Development Agricultural Total June 30, 2018 (in 000's) Grades 1 and 2 $ 325 $ 2,924 $ — $ — $ 3,249 Grade 3 217 1,067 — — 1,284 Grades 4 and 5 – pass 54,230 199,707 85,057 55,652 394,646 Grade 6 – special mention 10 8,376 — — 8,386 Grade 7 – substandard 3,173 439 23,514 1,010 28,136 Grade 8 – doubtful — — — — — Total $ 57,955 $ 212,513 $ 108,571 $ 56,662 $ 435,701 Commercial and Industrial Commercial Real Estate Real Estate Construction and Development Agricultural Total December 31, 2017 (in 000's) Grades 1 and 2 $ 342 $ 2,954 $ — $ 70 $ 3,366 Grade 3 251 1,569 — — 1,820 Grades 4 and 5 – pass 43,264 207,568 104,549 56,817 412,198 Grade 6 – special mention — 8,487 720 994 10,201 Grade 7 – substandard 3,169 454 17,701 1,600 22,924 Grade 8 – doubtful — — — — — Total $ 47,026 $ 221,032 $ 122,970 $ 59,481 $ 450,509
Credit risk ratings for consumer related loans and other homogenous loans	The following tables summarize the credit risk ratings for consumer related loans and other homogeneous loans for June 30, 2018 and December 31, 2017 : June 30, 2018 December 31, 2017 Residential Mortgages Home Improvement and Home Equity Installment and Other Total Residential Mortgages Home Improvement and Home Equity Installment and Other Total (in 000's) Not graded $ 60,242 $ 364 $ 65,178 $ 125,784 $ 69,249 $ 433 $ 63,565 $ 133,247 Pass 9,415 22 2,156 11,593 13,899 24 2,011 15,934 Special Mention 636 — — 636 643 — — 643 Substandard 219 — 63 282 1,013 — 5 1,018 Doubtful — — — — — — — — Total $ 70,512 $ 386 $ 67,397 $ 138,295 $ 84,804 $ 457 $ 65,581 $ 150,842
Credit quality indicators for outstanding student loans	The following tables summarize the credit quality indicators for outstanding student loans as of June 30, 2018 and December 31, 2017 (in 000's, except for number of borrowers): June 30, 2018 December 31, 2017 Number of Loans Amount (in 000's) Number of Loans Amount (in 000's) School 992 $ 37,565 1,216 $ 48,825 Grace 294 13,724 55 1,446 Repayment 184 6,129 201 6,473 Deferment 40 1,270 32 1,128 Forbearance 92 3,006 50 1,981 Claim 1 67 — — Total 1,603 $ 61,761 1,554 $ 59,853
Allowance for credit loses by loan category	The following summarizes the activity in the allowance for credit losses by loan category for the quarters ended June 30, 2018 and 2017 (in 000's). Three Months Ended Commercial and Industrial Real Estate Mortgage Real Estate Construction Development Agricultural Installment & Other Unallocated Total June 30, 2018 Beginning balance $ 1,985 $ 1,204 $ 2,862 $ 1,342 $ 821 $ 902 $ 9,116 Provision (recovery of provision) for credit losses (793 ) (7 ) (175 ) (41 ) (55 ) (65 ) (1,136 ) Charge-offs — — — — (7 ) — (7 ) Recoveries 355 16 — — 81 — 452 Net charge-offs 355 16 — — 74 — 445 Ending balance $ 1,547 $ 1,213 $ 2,687 $ 1,301 $ 840 $ 837 $ 8,425 Period-end amount allocated to: Loans individually evaluated for impairment 444 590 — 706 — — 1,740 Loans collectively evaluated for impairment 1,103 623 2,687 595 840 837 6,685 Ending balance $ 1,547 $ 1,213 $ 2,687 $ 1,301 $ 840 $ 837 $ 8,425 Three Months Ended Commercial and Industrial Real Estate Mortgage Real Estate Construction Development Agricultural Installment & Other Unallocated Total June 30, 2017 Beginning balance $ 1,781 $ 1,285 $ 3,096 $ 1,097 $ 848 $ 841 $ 8,948 Provision (recovery of provision) for credit losses (72 ) (118 ) (209 ) 492 (92 ) (53 ) (52 ) Charge-offs (98 ) — — — (5 ) — (103 ) Recoveries 154 7 — — 53 — 214 Net charge-offs 56 7 — — 48 — 111 Ending balance $ 1,765 $ 1,174 $ 2,887 $ 1,589 $ 804 $ 788 $ 9,007 Period-end amount allocated to: Loans individually evaluated for impairment 711 441 — 793 — — 1,945 Loans collectively evaluated for impairment 1,054 733 2,887 796 804 788 7,062 Ending balance $ 1,765 $ 1,174 $ 2,887 $ 1,589 $ 804 $ 788 $ 9,007 The following summarizes the activity in the allowance for credit losses by loan category for the six months ended June 30, 2018 and 2017 (in 000's). Six Months Ended Commercial and Industrial Real Estate Mortgage Real Estate Construction Development Agricultural Installment & Other Unallocated Total June 30, 2018 Beginning balance $ 1,408 $ 1,182 $ 2,903 $ 1,631 $ 887 $ 1,256 $ 9,267 Provision (recovery of provision) for credit losses (181 ) 11 (216 ) (330 ) (190 ) (419 ) (1,325 ) Charge-offs (88 ) — — — (11 ) — (99 ) Recoveries 408 20 — — 154 — 582 Net recoveries 320 20 — — 143 — 483 Ending balance $ 1,547 $ 1,213 $ 2,687 $ 1,301 $ 840 $ 837 $ 8,425 Period-end amount allocated to: Loans individually evaluated for impairment 444 590 — 706 — — 1,740 Loans collectively evaluated for impairment 1,103 623 2,687 595 840 837 6,685 Ending balance $ 1,547 $ 1,213 $ 2,687 $ 1,301 $ 840 $ 837 $ 8,425 Six Months Ended Commercial and Industrial Real Estate Mortgage Real Estate Construction Development Agricultural Installment & Other Unallocated Total June 30, 2017 Beginning balance $ 1,843 $ 1,430 $ 3,378 $ 666 $ 888 $ 697 $ 8,902 Provision (recovery of provision) for credit losses (137 ) (268 ) (491 ) 902 (128 ) 91 (31 ) Charge-offs (105 ) (2 ) — — (10 ) — (117 ) Recoveries 164 14 — 21 54 — 253 Net charge-offs 59 12 — 21 44 — 136 Ending balance $ 1,765 $ 1,174 $ 2,887 $ 1,589 $ 804 $ 788 $ 9,007 Period-end amount allocated to: Loans individually evaluated for impairment 711 441 — 793 — — 1,945 Loans collectively evaluated for impairment 1,054 733 2,887 796 804 788 7,062 Ending balance $ 1,765 $ 1,174 $ 2,887 $ 1,589 $ 804 $ 788 $ 9,007
Summarized loan balances	The following summarizes information with respect to the loan balances at June 30, 2018 and 2017 . June 30, 2018 June 30, 2017 Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Total Loans Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Total Loans (in 000's) Commercial and Business Loans $ 2,949 $ 54,098 $ 57,047 $ 3,950 $ 47,128 $ 51,078 Government Program Loans 309 599 908 396 997 1,393 Total Commercial and Industrial 3,258 54,697 57,955 4,346 48,125 52,471 Commercial Real Estate Loans 1,367 211,146 212,513 1,066 201,298 202,364 Residential Mortgage Loans 2,228 68,284 70,512 2,678 76,641 79,319 Home Improvement and Home Equity Loans — 386 386 — 572 572 Total Real Estate Mortgage 3,595 279,816 283,411 3,744 278,511 282,255 Real Estate Construction and Development Loans 11,764 96,807 108,571 6,878 117,871 124,749 Agricultural Loans 1,017 55,645 56,662 1,056 57,376 58,432 Installment and Other Loans 62 67,335 67,397 — 49,333 49,333 Total Loans $ 19,696 $ 554,300 $ 573,996 $ 16,024 $ 551,216 $ 567,240

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2018
Deposits [Abstract]
Deposits summary	Deposits include the following: (in 000's) June 30, 2018 December 31, 2017 Noninterest-bearing deposits $ 281,686 $ 307,299 Interest-bearing deposits: NOW and money market accounts 322,995 234,154 Savings accounts 85,480 81,408 Time deposits: Under $250,000 51,925 51,687 $250,000 and over 14,877 13,145 Total interest-bearing deposits 475,277 380,394 Total deposits $ 756,963 $ 687,693 Total brokered deposits included in time deposits above * $ — $ — * CDARs reciprocal deposits are no longer considered brokered deposits for the Company.

Supplemental Cash Flow Disclo26

Supplemental Cash Flow Disclosures (Tables)	6 Months Ended
	Jun. 30, 2018
Supplemental Cash Flow Information [Abstract]
Supplemental cash flow disclosures	Six months ended June 30, (in 000's) 2018 2017 Cash paid during the period for: Interest $ 1,137 $ 886 Income taxes $ 4,800 $ 4,410 Noncash investing activities: Unrealized gains on unrecognized post retirement costs $ 27 $ 26 Unrealized loss on available for sale securities $ (428 ) $ 355 Unrealized gains on TRUPs $ 295 $ — Stock dividends issued $ — $ 1,220 Cash dividend declared $ 1,520 $ 845 Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income $ 1,482 $ — Adoption of ASU 2016-01: recognition of previously unrealized losses within CRA Fund $ 184 $ —

Net Income per Common Share (Ta

Net Income per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Computation of income (loss) per share	The following table provides a reconciliation of the numerator and the denominator of the basic EPS computation with the numerator and the denominator of the diluted EPS computation: Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 Net income (000's, except per share amounts) $ 3,392 $ 2,492 $ 6,549 $ 4,263 Weighted average shares issued 16,899,968 16,875,336 16,895,135 16,792,083 Add: dilutive effect of stock options 57,314 19,037 40,776 16,650 Weighted average shares outstanding adjusted for potential dilution 16,957,282 16,894,373 16,935,911 16,808,733 Basic earnings per share $ 0.20 $ 0.15 $ 0.39 $ 0.25 Diluted earnings per share $ 0.20 $ 0.15 $ 0.39 $ 0.25 Anti-dilutive stock options excluded from earnings per share calculation 60,000 30,000 103,000 30,000

Fair Value Measurements and D28

Fair Value Measurements and Disclosure (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair value of financial instruments	The table below is a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized at the periods indicated: June 30, 2018 (in 000's) Carrying Amount Estimated Fair Value Quoted Prices In Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Financial Assets: Cash and cash equivalents $ 191,128 $ 191,128 $ 191,128 $ — $ — AFS Investment securities 56,724 56,724 — 56,724 — Marketable equity securities 3,659 3,659 3,659 — — Loans 565,926 555,193 — — 555,193 Accrued interest receivable 8,392 8,392 — 8,392 — Financial Liabilities: Deposits: Noninterest-bearing 281,686 281,686 281,686 — — NOW and money market 322,995 322,995 322,995 — — Savings 85,480 85,480 85,480 — — Time deposits 66,802 66,159 — — 66,159 Total deposits 756,963 756,320 690,161 66,159 Junior subordinated debt 10,125 10,125 — — 10,125 Accrued interest payable 43 43 — 43 — December 31, 2017 (in 000's) Carrying Amount Estimated Fair Value Quoted Prices In Active Markets for Identical Assets Level 1 Significant Other Observable Inputs Level 2 Significant Unobservable Inputs Level 3 Financial Assets: Cash and cash equivalents $ 107,934 $ 107,934 $ 107,934 $ — $ — Investment securities 41,985 45,722 3,737 41,985 — Loans 593,123 588,938 — — 588,938 Accrued interest receivable 6,526 6,526 — 6,526 — Financial Liabilities: Deposits: Noninterest-bearing 307,299 307,299 307,299 — — NOW and money market 234,154 234,154 234,154 — — Savings 81,408 81,408 81,408 — — Time deposits 64,832 64,387 — — 64,387 Total deposits 687,693 687,248 622,861 — 64,387 Junior subordinated debt 9,730 9,730 — — 9,730 Accrued interest payable 44 44 — 44 —
Description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the company's assets and liabilities classified as level 3 and measured at fair value on a recurring basis	The following table provides a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a recurring basis at June 30, 2018 and December 31, 2017 : June 30, 2018 December 31, 2017 Financial Instrument Valuation Technique Unobservable Input Weighted Average Financial Instrument Valuation Technique Unobservable Input Weighted Average Junior Subordinated Debt Discounted cash flow Discount Rate 6.05% Junior Subordinated Debt Discounted cash flow Discount Rate 5.81%
Assets and liabilities measured at fair value on recurring and non-recurring basis	The following tables summarize the Company’s assets and liabilities that were measured at fair value on a recurring and non-recurring basis as of June 30, 2018 (in 000’s): Description of Assets June 30, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) AFS Securities (2): U.S. Government agencies $ 30,351 $ — $ 30,351 $ — U.S. Government collateralized mortgage obligations 26,373 — 26,373 — Marketable equity securities (2) 3,659 3,659 — — Total investment securities $ 60,383 $ 3,659 $ 56,724 $ — Total $ 60,383 $ 3,659 $ 56,724 $ — Description of Liabilities June 30, 2018 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) Junior subordinated debt (2) $ 10,125 — — $ 10,125 Total $ 10,125 — — $ 10,125 (1) Nonrecurring (2) Recurring The following tables summarize the Company’s assets and liabilities that were measured at fair value on a recurring and non-recurring basis as of December 31, 2017 (in 000’s): Description of Assets December 31, 2017 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) AFS Securities (2): U.S. Government agencies $ 19,954 $ — $ 19,954 $ — U.S. Government collateralized mortgage obligations 22,031 — 22,031 — Marketable equity securities (2) 3,737 3,737 — — Total investment securities 45,722 3,737 41,985 $ — Total $ 45,722 $ 3,737 $ 41,985 $ — Description of Liabilities December 31, 2017 Quoted Prices (Level 1) Significant (Level 2) Significant (Level 3) Junior subordinated debt (2) $ 9,730 $ — $ — $ 9,730 Total $ 9,730 $ — $ — $ 9,730 (1) Nonrecurring (2) Recurring
Significant unobservable inputs (level 3) on a recurring basis	The following tables provide a reconciliation of assets and liabilities at fair value using significant unobservable inputs (Level 3) on a recurring basis during the three and six months ended June 30, 2018 and 2017 (in 000’s): Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Reconciliation of Liabilities: Junior Subordinated Debt Junior Junior Subordinated Debt Junior Subordinated Debt Beginning balance $ 9,641 $ 9,171 $ 9,730 $ 8,832 Gross loss included in earnings 192 264 661 601 Gross loss (gain) related to changes in instrument specific credit risk 272 — (295 ) — Change in accrued interest 20 6 29 8 Ending balance $ 10,125 $ 9,441 $ 10,125 $ 9,441 The amount of total (gain) loss for the period included in earnings attributable to the change in unrealized gains or losses relating to liabilities still held at the reporting date $ 192 $ 264 $ 661 $ 601

Accumulated Other Comprehensi29

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedule of components of accumulated other comprehensive income	The components of accumulated other comprehensive income, included in shareholders’ equity, are as follows: (in 000's) June 30, 2018 December 31, 2017 Net unrealized loss on available for sale securities Unfunded status of the supplemental retirement plans Net unrealized gain on junior subordinated debentures Net unrealized loss on available for sale securities Unfunded status of the supplemental retirement plans Net unrealized gain on junior subordinated debentures Beginning balance $ (248 ) $ (462 ) $ — $ (221 ) $ (383 ) $ — Reclassifications upon adoption of ASU 2016-01 184 — 1,482 — — — Current period comprehensive (loss) income (300 ) 19 207 (27 ) (79 ) — Ending balance $ (364 ) $ (443 ) $ 1,689 $ (248 ) $ (462 ) $ — Accumulated other comprehensive income (loss) $ 882 $ (710 )

Organization and Summary of S30

Organization and Summary of Significant Accounting and Reporting Policies (Details)	6 Months Ended
	Jun. 30, 2018subsidiary
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of subsidiaries	1

Investment Securities (Details)

Investment Securities (Details)	Jan. 01, 2018USD ($)	Jun. 30, 2018USD ($)security	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)segmentsecurity	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Comparison of amortized cost and fair value of securities available for sale [Abstract]
Amortized Cost		$ 57,241,000		$ 57,241,000		$ 42,074,000
Gross Unrealized Gains		219,000		219,000		368,000
Gross Unrealized Losses		(736,000)		(736,000)		(457,000)
Fair Value (Carrying Amount)		56,724,000		56,724,000		41,985,000
Amortized Cost [Abstract]
Due in one year or less		0		0
Due after one year through five years		0		0
Due after five years through ten years		6,045,000		6,045,000
Due after ten years		24,282,000		24,282,000
Collateralized mortgage obligations		26,914,000		26,914,000
Amortized Cost		57,241,000		57,241,000		42,074,000
Fair Value (Carrying Amount) [Abstract]
Due in one year or less		0		0
Due after one year through five years		0		0
Due after five years through ten years		6,031,000		6,031,000
Due after ten years		24,320,000		24,320,000
Collateralized mortgage obligations		26,373,000		26,373,000
Fair Value (Carrying Amount)		56,724,000		56,724,000		41,985,000
Available-for-sale securities, gross realized gains		0	$ 0	0	$ 0
Available-for-sale securities, gross realized losses		0	0	0	0
OTTI losses, investments		0	0	0	0
Fair value of available-for-sale securities pledged as collateral for FHLB borrowings		50,240,058		50,240,058
Summarizes temporarily impaired investment securities [Abstract]
Less than 12 Months, Fair Value (Carrying Amount)		19,861,000		19,861,000		9,211,000
Less than 12 Months, Unrealized Losses		(259,000)		(259,000)		(157,000)
12 Months or More, Fair Value (Carrying Amount)		19,598,000		19,598,000		20,208,000
12 Months or More, Unrealized Losses		(477,000)		(477,000)		(300,000)
Total Fair Value (Carrying Amount)		39,459,000		39,459,000		29,419,000
Total Unrealized Losses		(736,000)		$ (736,000)		(457,000)
Number of general segments for the segregation of portfolio | segment				2
Marketable equity securities		3,659,000		$ 3,659,000		3,737,000
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities				184,000	0
Unrealized loss on marketable equity securities		18,000	$ 0	78,000	$ 0
Held-to-maturity securities		0		0		0
Trading securities		0		0		0
Carrying Amount
Comparison of amortized cost and fair value of securities available for sale [Abstract]
Fair Value (Carrying Amount)		56,724,000		56,724,000
Fair Value (Carrying Amount) [Abstract]
Fair Value (Carrying Amount)		56,724,000		56,724,000
Fair value of available-for-sale securities pledged as collateral for FHLB borrowings		50,806,841		50,806,841
Summarizes temporarily impaired investment securities [Abstract]
Marketable equity securities		3,659,000		3,659,000
U.S. Government agencies
Comparison of amortized cost and fair value of securities available for sale [Abstract]
Amortized Cost		30,327,000		30,327,000		19,683,000
Gross Unrealized Gains		182,000		182,000		312,000
Gross Unrealized Losses		(158,000)		(158,000)		(41,000)
Fair Value (Carrying Amount)		30,351,000		30,351,000		19,954,000
Amortized Cost [Abstract]
Amortized Cost		30,327,000		30,327,000		19,683,000
Fair Value (Carrying Amount) [Abstract]
Fair Value (Carrying Amount)		30,351,000		30,351,000		19,954,000
Summarizes temporarily impaired investment securities [Abstract]
Less than 12 Months, Fair Value (Carrying Amount)		12,673,000		12,673,000		1,728,000
Less than 12 Months, Unrealized Losses		(55,000)		(55,000)		(3,000)
12 Months or More, Fair Value (Carrying Amount)		7,464,000		7,464,000		6,625,000
12 Months or More, Unrealized Losses		(103,000)		(103,000)		(38,000)
Total Fair Value (Carrying Amount)		20,137,000		20,137,000		8,353,000
Total Unrealized Losses		$ (158,000)		$ (158,000)		(41,000)
Number of impaired securities | security		7		7
U.S. Government sponsored entities & agencies collateralized by mortgage obligations
Comparison of amortized cost and fair value of securities available for sale [Abstract]
Amortized Cost		$ 26,914,000		$ 26,914,000		22,391,000
Gross Unrealized Gains		37,000		37,000		56,000
Gross Unrealized Losses		(578,000)		(578,000)		(416,000)
Fair Value (Carrying Amount)		26,373,000		26,373,000		22,031,000
Amortized Cost [Abstract]
Amortized Cost		26,914,000		26,914,000		22,391,000
Fair Value (Carrying Amount) [Abstract]
Fair Value (Carrying Amount)		26,373,000		26,373,000		22,031,000
Summarizes temporarily impaired investment securities [Abstract]
Less than 12 Months, Fair Value (Carrying Amount)		7,188,000		7,188,000		7,483,000
Less than 12 Months, Unrealized Losses		(204,000)		(204,000)		(154,000)
12 Months or More, Fair Value (Carrying Amount)		12,134,000		12,134,000		13,583,000
12 Months or More, Unrealized Losses		(374,000)		(374,000)		(262,000)
Total Fair Value (Carrying Amount)		19,322,000		19,322,000		21,066,000
Total Unrealized Losses		$ (578,000)		$ (578,000)		$ (416,000)
Number of impaired securities | security		12		12
ASU 2016-01
Summarizes temporarily impaired investment securities [Abstract]
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities	$ (184,000)

Loans (Details)

Loans (Details)	6 Months Ended
	Jun. 30, 2018USD ($)loan	Dec. 31, 2017USD ($)loan	Jun. 30, 2017USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 573,996,000	$ 601,351,000	$ 567,240,000
Student loans, installment	61,761,000
Accrued interest receivable	8,392,000	6,526,000
Commitments to Extend Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value, concentration of risk, commitments	123,711,000	99,958,000
Standby Letters of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value, concentration of risk, commitments	605,000	2,058,000
Loan Purchase Commitments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchase commitment	30,000,000
Total Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 57,955,000	47,026,000
Percentage of total loans (in hundredths)	10.10%
Commercial and Business Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 57,047,000	46,065,000
Government Program Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	908,000	961,000
Total Real Estate Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 283,411,000	306,293,000
Percentage of total loans (in hundredths)	49.40%
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 212,513,000	221,032,000
Residential Mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	70,512,000	84,804,000
Home Improvement and Home Equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	386,000	457,000
Real Estate Construction and Development Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 108,571,000	122,970,000
Percentage of total loans (in hundredths)	18.90%
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 56,662,000	59,481,000
Percentage of total loans (in hundredths)	9.90%
Installment and Student Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 67,397,000	$ 65,581,000
Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of total loans (in hundredths)	11.70%
Student loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	$ 6,186,000
Number of loans | loan	1,603	1,554
Financing receivable	$ 61,761,000	$ 59,853,000
Repayment, Deferment, and Forbearance | Student loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan	316
Repayment | Student loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan	184	201
Financing receivable	$ 6,129,000	$ 6,473,000
Deferment | Student loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan	40	32
Financing receivable	$ 1,270,000	$ 1,128,000
Forbearance | Student loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans | loan	92	50
Financing receivable	$ 3,006,000	$ 1,981,000

Loans, Part II (Details)

Loans, Part II (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2018USD ($)payment	Dec. 31, 2017USD ($)	Jun. 30, 2017USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 9,139,000	$ 9,139,000	$ 1,445,000
Current Loans	564,857,000	564,857,000	599,906,000
Total Loans	573,996,000	573,996,000	601,351,000	$ 567,240,000
Accruing Loans 90 or More Days Past Due	67,000	$ 67,000	485,000
Minimum period of default		90 days
Number of monthly payments to demonstrate repayment ability | payment		6
Nonaccrual loans balances [Abstract]
Total Loans	12,202,000	$ 12,202,000	5,296,000
Loans, increase (decrease)	8,825,000
Undisbursed commitments	0	0	0
Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	212,000
Current Loans	57,955,000	57,955,000	46,814,000
Total Loans	57,955,000	57,955,000	47,026,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	212,000
Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	212,000
Current Loans	57,047,000	57,047,000	45,853,000
Total Loans	57,047,000	57,047,000	46,065,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	212,000
Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Current Loans	908,000	908,000	961,000
Total Loans	908,000	908,000	961,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	873,000
Current Loans	283,411,000	283,411,000	305,420,000
Total Loans	283,411,000	283,411,000	306,293,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	438,000	438,000	742,000
Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	779,000
Current Loans	212,513,000	212,513,000	220,253,000
Total Loans	212,513,000	212,513,000	221,032,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	438,000	438,000	454,000
Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	94,000
Current Loans	70,512,000	70,512,000	84,710,000
Total Loans	70,512,000	70,512,000	84,804,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	288,000
Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Current Loans	386,000	386,000	457,000
Total Loans	386,000	386,000	457,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	314,000	314,000	0
Current Loans	67,083,000	67,083,000	65,581,000
Total Loans	67,397,000	67,397,000	65,581,000
Accruing Loans 90 or More Days Past Due	67,000	67,000	125,000
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	8,825,000	8,825,000	360,000
Current Loans	99,746,000	99,746,000	122,610,000
Total Loans	108,571,000	108,571,000	122,970,000
Accruing Loans 90 or More Days Past Due	0	0	360,000
Nonaccrual loans balances [Abstract]
Total Loans	11,764,000	11,764,000	4,342,000
Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Current Loans	56,662,000	56,662,000	59,481,000
Total Loans	56,662,000	56,662,000	59,481,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	314,000	314,000	0
Current Loans	66,929,000	66,929,000	65,446,000
Total Loans	67,243,000	67,243,000	65,446,000
Accruing Loans 90 or More Days Past Due	67,000	67,000	125,000
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Current Loans	38,000	38,000	38,000
Total Loans	38,000	38,000	38,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Current Loans	116,000	116,000	97,000
Total Loans	116,000	116,000	97,000
Accruing Loans 90 or More Days Past Due	0	0	0
Nonaccrual loans balances [Abstract]
Total Loans	0	0	0
Loans 30-60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	231,000	231,000	779,000
Loans 30-60 Days Past Due | Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	779,000
Loans 30-60 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	779,000
Loans 30-60 Days Past Due | Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	231,000	231,000	0
Loans 30-60 Days Past Due | Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	231,000	231,000	0
Loans 30-60 Days Past Due | Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 30-60 Days Past Due | Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	83,000	83,000	0
Loans 61-89 Days Past Due | Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	83,000	83,000	0
Loans 61-89 Days Past Due | Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	83,000	83,000	0
Loans 61-89 Days Past Due | Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 61-89 Days Past Due | Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	8,825,000	8,825,000	666,000
Loans 90 or More Days Past Due | Total Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	212,000
Loans 90 or More Days Past Due | Commercial and Business Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	212,000
Loans 90 or More Days Past Due | Government Program Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Total Real Estate Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	94,000
Loans 90 or More Days Past Due | Commercial Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Residential Mortgages
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	94,000
Loans 90 or More Days Past Due | Home Improvement and Home Equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Installment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Real Estate Construction and Development Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	8,825,000	8,825,000	360,000
Loans 90 or More Days Past Due | Agricultural Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Overdraft Protection Lines
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	0	0	0
Loans 90 or More Days Past Due | Overdrafts
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due Loans	$ 0	$ 0	$ 0

Loans, Part III (Details)

Loans, Part III (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 19,662,000		$ 19,662,000		$ 14,728,000
Recorded Investment With No Allowance	13,071,000		13,071,000		7,603,000
Recorded Investment With Allowance	6,625,000		6,625,000		7,187,000
Total Recorded Investment	19,696,000		19,696,000		14,790,000
Related Allowance	1,740,000		1,740,000		1,888,000
Average Recorded Investment	16,633,000	$ 16,881,000	16,018,000	$ 16,468,000	15,973,000
Interest Recognized	282,000	323,000	452,000	546,000	921,000
Impaired financing receivable, interest income, cash basis method	150,000	$ 111,000	213,000	$ 190,000
Accrued interest receivable			34,000		62,000
Total Commercial and Industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	3,245,000		3,245,000		3,304,000
Recorded Investment With No Allowance	844,000		844,000		431,000
Recorded Investment With Allowance	2,414,000		2,414,000		2,887,000
Total Recorded Investment	3,258,000		3,258,000		3,318,000
Related Allowance	444,000		444,000		534,000
Average Recorded Investment			3,397,000		4,010,000
Interest Recognized			107,000		234,000
Commercial and Business Loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	2,937,000		2,937,000		3,255,000
Recorded Investment With No Allowance	535,000		535,000		381,000
Recorded Investment With Allowance	2,414,000		2,414,000		2,887,000
Total Recorded Investment	2,949,000		2,949,000		3,268,000
Related Allowance	444,000		444,000		534,000
Average Recorded Investment			3,171,000		3,791,000
Interest Recognized			97,000		229,000
Government Program Loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	308,000		308,000		49,000
Recorded Investment With No Allowance	309,000		309,000		50,000
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	309,000		309,000		50,000
Related Allowance	0		0		0
Average Recorded Investment			226,000		219,000
Interest Recognized			10,000		5,000
Total Real Estate Mortgage
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	3,581,000		3,581,000		4,273,000
Recorded Investment With No Allowance	400,000		400,000		1,199,000
Recorded Investment With Allowance	3,195,000		3,195,000		3,097,000
Total Recorded Investment	3,595,000		3,595,000		4,296,000
Related Allowance	590,000		590,000		488,000
Average Recorded Investment			4,013,000		3,883,000
Interest Recognized			94,000		221,000
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,362,000		1,362,000		1,233,000
Recorded Investment With No Allowance	0		0		0
Recorded Investment With Allowance	1,367,000		1,367,000		1,245,000
Total Recorded Investment	1,367,000		1,367,000		1,245,000
Related Allowance	510,000		510,000		385,000
Average Recorded Investment			1,409,000		1,138,000
Interest Recognized			34,000		79,000
Residential Mortgages
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	2,219,000		2,219,000		3,040,000
Recorded Investment With No Allowance	400,000		400,000		1,199,000
Recorded Investment With Allowance	1,828,000		1,828,000		1,852,000
Total Recorded Investment	2,228,000		2,228,000		3,051,000
Related Allowance	80,000		80,000		103,000
Average Recorded Investment			2,604,000		2,745,000
Interest Recognized			60,000		142,000
Home Improvement and Home Equity loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0		0		0
Recorded Investment With No Allowance	0		0		0
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	0		0		0
Related Allowance	0		0		0
Average Recorded Investment			0		0
Interest Recognized			0		0
Real Estate Construction and Development Loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	11,764,000		11,764,000		5,951,000
Recorded Investment With No Allowance	11,764,000		11,764,000		5,972,000
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	11,764,000		11,764,000		5,972,000
Related Allowance	0		0		0
Average Recorded Investment			7,447,000		6,660,000
Interest Recognized			205,000		418,000
Agricultural Loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,010,000		1,010,000		1,200,000
Recorded Investment With No Allowance	1,000		1,000		1,000
Recorded Investment With Allowance	1,016,000		1,016,000		1,203,000
Total Recorded Investment	1,017,000		1,017,000		1,204,000
Related Allowance	706,000		706,000		866,000
Average Recorded Investment			1,112,000		1,179,000
Interest Recognized			43,000		48,000
Total Installment
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	62,000		62,000		0
Recorded Investment With No Allowance	62,000		62,000		0
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	62,000		62,000		0
Related Allowance	0		0		0
Average Recorded Investment			49,000		241,000
Interest Recognized			3,000		0
Consumer Loans
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	62,000		62,000		0
Recorded Investment With No Allowance	62,000		62,000		0
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	62,000		62,000		0
Related Allowance	0		0		0
Average Recorded Investment			49,000		241,000
Interest Recognized			3,000		0
Overdraft Protection Lines
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0		0		0
Recorded Investment With No Allowance	0		0		0
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	0		0		0
Related Allowance	0		0		0
Average Recorded Investment			0		0
Interest Recognized			0		0
Overdrafts
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0		0		0
Recorded Investment With No Allowance	0		0		0
Recorded Investment With Allowance	0		0		0
Total Recorded Investment	0		0		0
Related Allowance	$ 0		0		0
Average Recorded Investment			0		0
Interest Recognized			$ 0		$ 0

Loans, Part IV (Details)

Loans, Part IV (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)contractloan	Jun. 30, 2017USD ($)contract	Jun. 30, 2018USD ($)contractloan	Jun. 30, 2017USD ($)contract	Dec. 31, 2017USD ($)loan
Financing Receivable, Modifications [Line Items]
Financing receivable, period of successful payment history used for restructured loan accrual status			6 months
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	2	0	5
Pre- Modification Outstanding Recorded Investment	$ 0	$ 416,000	$ 0	$ 2,125,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 416,000	$ 0	$ 2,125,000
Number of Contracts which Defaulted During Period | contract	0	0	1	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 310,000	$ 0
Number of restructured loans | loan	17		17		25
Total restructured loans	$ 7,641,000		$ 7,641,000		$ 11,362,000
TDR activity by loan category [Roll Forward]
Beginning balance	9,702,000	13,429,000	11,362,000	12,410,000
Defaults	0	0	(310,000)	0
Additions	0	416,000	0	2,125,000
Principal reductions	(2,061,000)	(1,884,000)	(3,348,000)	(2,567,000)
Charge-offs	0		(63,000)	(10,000)
Ending balance	7,641,000	11,958,000	7,641,000	11,958,000
Allowance for loan loss	$ 1,297,000	$ 662,000	$ 1,297,000	$ 662,000
Commercial and Business Loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 69,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 69,000
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
Government Program Loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	1	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 178,000	$ 0	$ 178,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 178,000	$ 0	$ 178,000
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
TDR activity by loan category [Roll Forward]
Beginning balance	1,314,000	1,091,000	1,233,000	1,454,000
Defaults	0	0	0	0
Additions	0	0	0	0
Principal reductions	48,000	(29,000)	129,000	(392,000)
Charge-offs	0	0	0	0
Ending balance	1,362,000	1,062,000	1,362,000	1,062,000
Allowance for loan loss	$ 511,000	$ 216,000	$ 511,000	$ 216,000
Single Family Residential Loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	1	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 238,000	$ 0	$ 238,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 238,000	$ 0	$ 238,000
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
Home Improvement and Home Equity loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
TDR activity by loan category [Roll Forward]
Beginning balance	0	0	0	0
Defaults	0	0	0	0
Additions	0	0	0	0
Principal reductions	0	0	0	0
Charge-offs	0	0	0	0
Ending balance	0	0	0	0
Allowance for loan loss	$ 0	$ 0	$ 0	$ 0
Real Estate Construction and Development Loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 790,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 790,000
Number of Contracts which Defaulted During Period | contract	0	0	1	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 310,000	$ 0
TDR activity by loan category [Roll Forward]
Beginning balance	4,606,000	6,960,000	5,951,000	6,267,000
Defaults	0	0	(310,000)	0
Additions	0	0	0	790,000
Principal reductions	(1,667,000)	(92,000)	(2,702,000)	(189,000)
Charge-offs	0	0	0	0
Ending balance	2,939,000	6,868,000	2,939,000	6,868,000
Allowance for loan loss	$ 0	$ 0	$ 0	$ 0
Agricultural
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	1
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 850,000
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 850,000
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
TDR activity by loan category [Roll Forward]
Beginning balance	1,110,000	850,000	1,200,000	0
Defaults	0	0	0	0
Additions	0	0	0	850,000
Principal reductions	(100,000)	(450,000)	(190,000)	(450,000)
Charge-offs	0	0	0	0
Ending balance	1,010,000	400,000	1,010,000	400,000
Allowance for loan loss	$ 706,000	$ 203,000	$ 706,000	$ 203,000
Consumer Loans
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
Overdraft Protection Lines
Troubled Debt Restructurings [Abstract]
Number of Contracts | contract	0	0	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0	$ 0	$ 0
Number of Contracts which Defaulted During Period | contract	0	0	0	0
Recorded Investment on Defaulted TDRs	$ 0	$ 0	$ 0	$ 0
Installment & Other
TDR activity by loan category [Roll Forward]
Beginning balance	0	965,000	0	965,000
Defaults	0	0	0	0
Additions	0	0	0	0
Principal reductions	0	(965,000)	0	(965,000)
Charge-offs	0	0	0	0
Ending balance	0	0	0	0
Allowance for loan loss	0	0	0	0
Total Commercial and Industrial
TDR activity by loan category [Roll Forward]
Beginning balance	147,000	1,212,000	436,000	1,356,000
Defaults	0	0	0	0
Additions	0	178,000	0	247,000
Principal reductions	(37,000)	(332,000)	(263,000)	(538,000)
Charge-offs	0	(3,000)	(63,000)	(10,000)
Ending balance	110,000	1,055,000	110,000	1,055,000
Allowance for loan loss	0	36,000	0	36,000
Residential Mortgages
TDR activity by loan category [Roll Forward]
Beginning balance	2,525,000	2,351,000	2,542,000	2,368,000
Defaults	0	0	0	0
Additions	0	238,000	0	238,000
Principal reductions	(305,000)	(16,000)	(322,000)	(33,000)
Charge-offs	0	0	0	0
Ending balance	2,220,000	2,573,000	2,220,000	2,573,000
Allowance for loan loss	$ 80,000	$ 207,000	$ 80,000	$ 207,000

Loans, Part V (Details)

Loans, Part V (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)rating	Dec. 31, 2017USD ($)
Financing Receivable, Recorded Investment [Line Items]
Number of risk rating approaches | rating	2
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	$ 138,295	$ 150,842
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	138,295	150,842
Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	435,701	450,509
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	435,701	450,509
Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	57,955	47,026
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	57,955	47,026
Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	212,513	221,032
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	212,513	221,032
Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	108,571	122,970
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	108,571	122,970
Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	56,662	59,481
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	56,662	59,481
Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	70,512	84,804
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	70,512	84,804
Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	386	457
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	386	457
Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	67,397	65,581
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	67,397	65,581
Grades 1 and 2 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	3,249	3,366
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	3,249	3,366
Grades 1 and 2 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	325	342
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	325	342
Grades 1 and 2 | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,924	2,954
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,924	2,954
Grades 1 and 2 | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grades 1 and 2 | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	70
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	70
Grade 3 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,284	1,820
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,284	1,820
Grade 3 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	217	251
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	217	251
Grade 3 | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,067	1,569
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,067	1,569
Grade 3 | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 3 | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grades 4 and 5 – pass | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	394,646	412,198
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	394,646	412,198
Grades 4 and 5 – pass | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	54,230	43,264
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	54,230	43,264
Grades 4 and 5 – pass | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	199,707	207,568
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	199,707	207,568
Grades 4 and 5 – pass | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	85,057	104,549
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	85,057	104,549
Grades 4 and 5 – pass | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	55,652	56,817
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	55,652	56,817
Grade 6 – special mention | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	8,386	10,201
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	8,386	10,201
Grade 6 – special mention | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	10	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	10	0
Grade 6 – special mention | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	8,376	8,487
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	8,376	8,487
Grade 6 – special mention | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	720
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	720
Grade 6 – special mention | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	994
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	994
Grade 7 – substandard | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	28,136	22,924
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	28,136	22,924
Grade 7 – substandard | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	3,173	3,169
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	3,173	3,169
Grade 7 – substandard | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	439	454
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	439	454
Grade 7 – substandard | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	23,514	17,701
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	23,514	17,701
Grade 7 – substandard | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,010	1,600
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,010	1,600
Grade 8 – doubtful | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Not graded
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	125,784	133,247
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	125,784	133,247
Not graded | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	60,242	69,249
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	60,242	69,249
Not graded | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	364	433
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	364	433
Not graded | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	65,178	63,565
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	65,178	63,565
Pass
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	11,593	15,934
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	11,593	15,934
Pass | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	9,415	13,899
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	9,415	13,899
Pass | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	22	24
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	22	24
Pass | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,156	2,011
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,156	2,011
Special Mention
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	636	643
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	636	643
Special Mention | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	636	643
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	636	643
Special Mention | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Special Mention | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Substandard
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	282	1,018
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	282	1,018
Substandard | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	219	1,013
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	219	1,013
Substandard | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Substandard | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	63	5
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	63	5
Doubtful
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Doubtful | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Doubtful | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Doubtful | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	$ 0	$ 0
Minimum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	3 years
Maximum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	4 years

Loans Loans, Part VI (Details)

Loans Loans, Part VI (Details)	6 Months Ended
	Jun. 30, 2018USD ($)loan	Dec. 31, 2017USD ($)loan
Student loan
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	1,603	1,554
Financing receivable | $	$ 61,761,000	$ 59,853,000
Student loan | School
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	992	1,216
Financing receivable | $	$ 37,565,000	$ 48,825,000
Student loan | Grace
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	294	55
Financing receivable | $	$ 13,724,000	$ 1,446,000
Student loan | Repayment
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	184	201
Financing receivable | $	$ 6,129,000	$ 6,473,000
Student loan | Deferment
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	40	32
Financing receivable | $	$ 1,270,000	$ 1,128,000
Student loan | Forbearance
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	92	50
Financing receivable | $	$ 3,006,000	$ 1,981,000
Student loan | Claim
Loans and Leases Receivable Disclosure [Line Items]
Number of loans | loan	1	0
Financing receivable | $	$ 67,000	$ 0
Minimum | ReliaMax
Loans and Leases Receivable Disclosure [Line Items]
Past due dates, delinquent	180 days
Maximum | ReliaMax
Loans and Leases Receivable Disclosure [Line Items]
Past due dates, delinquent	210 days

Loans, Part VII (Details)

Loans, Part VII (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)segmentloan	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)	Jun. 30, 2017USD ($)
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of loan portfolio segment | segment			10
Number of loans entity experienced losses over past twelve quarters | loan			7
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	$ 9,116	$ 8,948	$ 9,267	$ 8,902
Provision (recovery of provision) for credit losses	(1,136)	(52)	(1,325)	(31)
Charge-offs	(7)	(103)	(99)	(117)
Recoveries	452	214	582	253
Net recoveries	445	111	483	136
Ending balance	8,425	9,007	8,425	9,007
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					$ 1,740		$ 1,945
Loans collectively evaluated for impairment					6,685		7,062
Ending balance	9,116	8,948	$ 9,267	8,902	8,425	$ 9,267	9,007
Loans Individually Evaluated for Impairment					19,696		16,024
Loans Collectively Evaluated for Impairment					554,300		551,216
Total Loans					573,996	601,351	567,240
Consumer Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Number of segments | segment			3
Total Commercial and Industrial
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	1,985	1,781	$ 1,408	1,843
Provision (recovery of provision) for credit losses	(793)	(72)	(181)	(137)
Charge-offs	0	(98)	(88)	(105)
Recoveries	355	154	408	164
Net recoveries	355	56	320	59
Ending balance	1,547	1,765	1,547	1,765
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					444		711
Loans collectively evaluated for impairment					1,103		1,054
Ending balance	1,985	1,781	1,408	1,843	1,547	1,408	1,765
Loans Individually Evaluated for Impairment					3,258		4,346
Loans Collectively Evaluated for Impairment					54,697		48,125
Total Loans					57,955		52,471
Commercial and Business Loans
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					2,949		3,950
Loans Collectively Evaluated for Impairment					54,098		47,128
Total Loans					57,047		51,078
Government Program Loans
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					309		396
Loans Collectively Evaluated for Impairment					599		997
Total Loans					908		1,393
Total Real Estate Mortgage
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					3,595		3,744
Loans Collectively Evaluated for Impairment					279,816		278,511
Total Loans					283,411		282,255
Commercial Real Estate Loans
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					1,367		1,066
Loans Collectively Evaluated for Impairment					211,146		201,298
Total Loans					212,513		202,364
Residential Mortgage Loans
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					2,228		2,678
Loans Collectively Evaluated for Impairment					68,284		76,641
Total Loans					70,512		79,319
Home Improvement and Home Equity loans
Period-end amount allocated to [Abstract]
Loans Individually Evaluated for Impairment					0		0
Loans Collectively Evaluated for Impairment					386		572
Total Loans					386		572
Real Estate Mortgage
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	1,204	1,285	1,182	1,430
Provision (recovery of provision) for credit losses	(7)	(118)	11	(268)
Charge-offs	0	0	0	(2)
Recoveries	16	7	20	14
Net recoveries	16	7	20	12
Ending balance	1,213	1,174	1,213	1,174
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					590		441
Loans collectively evaluated for impairment					623		733
Ending balance	1,204	1,285	1,182	1,430	1,213	1,182	1,174
Real Estate Construction and Development Loans
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	2,862	3,096	2,903	3,378
Provision (recovery of provision) for credit losses	(175)	(209)	(216)	(491)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Net recoveries	0	0	0	0
Ending balance	2,687	2,887	2,687	2,887
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					0		0
Loans collectively evaluated for impairment					2,687		2,887
Ending balance	2,862	3,096	2,903	3,378	2,687	2,903	2,887
Loans Individually Evaluated for Impairment					11,764		6,878
Loans Collectively Evaluated for Impairment					96,807		117,871
Total Loans					108,571		124,749
Agricultural
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	1,342	1,097	1,631	666
Provision (recovery of provision) for credit losses	(41)	492	(330)	902
Charge-offs	0	0	0	0
Recoveries	0	0	0	21
Net recoveries	0	0	0	21
Ending balance	1,301	1,589	1,301	1,589
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					706		793
Loans collectively evaluated for impairment					595		796
Ending balance	1,342	1,097	1,631	666	1,301	1,631	1,589
Loans Individually Evaluated for Impairment					1,017		1,056
Loans Collectively Evaluated for Impairment					55,645		57,376
Total Loans					56,662		58,432
Installment & Other
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	821	848	887	888
Provision (recovery of provision) for credit losses	(55)	(92)	(190)	(128)
Charge-offs	(7)	(5)	(11)	(10)
Recoveries	81	53	154	54
Net recoveries	74	48	143	44
Ending balance	840	804	840	804
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					0		0
Loans collectively evaluated for impairment					840		804
Ending balance	821	848	887	888	840	887	804
Loans Individually Evaluated for Impairment					62		0
Loans Collectively Evaluated for Impairment					67,335		49,333
Total Loans					67,397		49,333
Unallocated
Summarizes activity in allowance for credit losses by loan category [Roll Forward]
Beginning balance	902	841	1,256	697
Provision (recovery of provision) for credit losses	(65)	(53)	(419)	91
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Net recoveries	0	0	0	0
Ending balance	837	788	837	788
Period-end amount allocated to [Abstract]
Loans individually evaluated for impairment					0		0
Loans collectively evaluated for impairment					837		788
Ending balance	$ 902	$ 841	$ 1,256	$ 697	$ 837	$ 1,256	$ 788

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Deposits [Abstract]
Noninterest-bearing deposits	$ 281,686	$ 307,299
Interest-bearing deposits:
NOW and money market accounts	322,995	234,154
Savings accounts	85,480	81,408
$250000	51,925	51,687
$250,000 and over	14,877	13,145
Total interest-bearing deposits	475,277	380,394
Total deposits	756,963	687,693
Total brokered deposits included in time deposits above	$ 0	$ 0

Short-term Borrowings_Other B40

Short-term Borrowings/Other Borrowings (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Short-term debt outstanding	$ 0	$ 0
Federal Reserve Bank of San Francisco
Short-term Debt [Line Items]
Unused borrowing lines	279,450,000	305,236,000
Qualifying loans pledged as collateral for borrowing lines	415,304,000	473,364,000
Federal Home Loan Bank (FHLB)
Short-term Debt [Line Items]
Unused borrowing lines	4,687,000	13,363,000
Investment securities pledged as collateral	7,130,000	17,049,000
Pacific Coast Bankers Bank
Short-term Debt [Line Items]
Unused borrowing lines	10,000,000	10,000,000
Union Bank
Short-term Debt [Line Items]
Unused borrowing lines	10,000,000
Zions First National Bank
Short-term Debt [Line Items]
Unused borrowing lines	$ 20,000,000	$ 20,000,000

Supplemental Cash Flow Disclo41

Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Cash paid during the period for:
Interest				$ 1,137		$ 886
Income taxes				4,800		4,410
Noncash investing activities:
Unrealized gains on unrecognized post-retirement costs		$ 18	$ 13	27		26
Unrealized holdings (loss) gain on securities		(171)	$ 267	(428)		355
Unrealized gains on TRUPs				295		0
Stock dividends issued				0		1,220
Cash dividend declared				1,520	$ 1,180	845
Adoption of ASU 2016-01: reclassification of TRUPS to accumulated other comprehensive income	$ 1,482	$ 192		1,482		0
Adoption of ASU 2016-01: recognition of previously unrealized losses within marketable equity securities				$ 184		$ 0

Dividend on Common Stock (Detai

Dividend on Common Stock (Details) - USD ($)	Mar. 27, 2018	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.09	$ 90	$ 70	$ 50
Dividends on common stock	$ 1,520,000	$ 1,520,000		$ 846,000
Dividends payable (in dollars per share)		$ 0.09	$ 70	$ 50
Dividends payable		$ 1,520,000
Authorized repurchase amount, common stock			$ 3,000,000

Net Income per Common Share (De

Net Income per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 3,392	$ 2,492	$ 6,549	$ 4,263
Weighted average shares issued (in shares)	16,899,968	16,875,336	16,895,135	16,792,083
Add: dilutive effect of stock options (in shares)	57,314	19,037	40,776	16,650
Weighted average shares outstanding adjusted for potential dilution (in shares)	16,957,282	16,894,373	16,935,911	16,808,733
Basic earnings per share (in dollars per share)	$ 0.20	$ 0.15	$ 0.39	$ 0.25
Diluted earnings per share (in dollars per share)	$ 0.20	$ 0.15	$ 0.39	$ 0.25
Anti-dilutive shares excluded from earnings per share calculation (in shares)	60,000	30,000	103,000	30,000

Taxes on Income (Details)

Taxes on Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Deferred tax assets, valuation allowance	$ 0		$ 0		$ 0
Provision for Taxes on Income	$ 1,373,000	$ 1,691,000	$ 2,653,000	$ 2,845,000
Effective income tax rate, percent			28.83%	40.03%

Junior Subordinated Debt_Trus45

Junior Subordinated Debt/Trust Preferred Securities (Details)	Jan. 01, 2018USD ($)	Sep. 30, 2009USD ($)	Sep. 30, 2015USD ($)	Aug. 31, 2015USD ($)	Jun. 30, 2018USD ($)$ / shares	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)quarter$ / shares	Jun. 30, 2017USD ($)	Dec. 31, 2017
Debt Instrument [Line Items]
Gain (loss) on fair value financial liability					$ (464,000)		$ (367,000)
Loss on fair value financial liability, gross					(192,000)	$ (264,000)	(661,000)	$ (601,000)
Loss on fair value financial liability, net					(135,000)	(126,000)	(464,000)	(354,000)
Gain on fair value financial liability, gross							295,000	0
Gain on fair value financial liability, net							207,000
Unrealized (loss) gain on TRUPs					(272,000)	$ 0	295,000	0
Gain (loss) on fair value financial liability, OCI, net	$ (1,482,000)				(192,000)		(1,482,000)	$ 0
Junior Subordinated Debt
Debt Instrument [Line Items]
Debt instrument, frequency of periodic payment		quarterly
Amount of junior subordinated debentures relating to trust preferred securities		$ 15,000,000			12,000,000		$ 12,000,000
Maximum number of consecutive quarters the entity defer interest payments without default or penalty | quarter							20
Debt instrument, unamortized discount rate				40.00%
Debt instrument, repurchased face amount			$ 3,000,000
Gain on redemption of Jr subordinated debentures			$ 78,000
Life of debt instrument							30 years
Fair value measurement option, gain (loss) on long-term debt instruments					$ 2,447,000		$ 2,447,000
Junior Subordinated Debt | Significant Unobservable Inputs (Level 3) | Valuation technique, discounted cash flow
Debt Instrument [Line Items]
Adjustment for difference between comparable sales							6.05%		5.81%
Junior Subordinated Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate							1.29%
Junior Subordinated Debt | United Security Bank
Debt Instrument [Line Items]
Amount of junior subordinated debentures relating to trust preferred securities				$ 3,000,000
ASU 2016-01
Debt Instrument [Line Items]
Impact of adoption on earnings per share, basic (in dollars per share) | $ / shares					$ 0.01		$ 0.01
Impact of adoption on earnings per share, diluted (in dollars per share) | $ / shares					$ 0.01		$ 0.01

Fair Value Measurements and D46

Fair Value Measurements and Disclosure (Details 1) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial Assets:
AFS Investment securities	$ 56,724	$ 41,985
Marketable equity securities	3,659	3,737
Investment securities	60,383	45,722
Deposits:
Junior subordinated debt	10,125	9,730
Quoted Prices In Active Markets for Identical Assets Level 1
Financial Assets:
Cash and cash equivalents	191,128	107,934
Marketable equity securities	3,659	3,737
Investment securities	3,659	3,737
Deposits:
Noninterest-bearing	281,686	307,299
NOW and money market	322,995	234,154
Savings	85,480	81,408
Total deposits	690,161	622,861
Significant Other Observable Inputs Level 2
Financial Assets:
AFS Investment securities	56,724
Investment securities	56,724	41,985
Accrued interest receivable	8,392	6,526
Deposits:
Accrued interest payable	43	44
Significant Unobservable Inputs Level 3
Financial Assets:
Loans	555,193	588,938
Deposits:
Time deposits	66,159	64,387
Total deposits	66,159	64,387
Junior subordinated debt	10,125	9,730
Carrying Amount
Financial Assets:
Cash and cash equivalents	191,128	107,934
AFS Investment securities	56,724
Marketable equity securities	3,659
Investment securities		41,985
Loans	565,926	593,123
Accrued interest receivable	8,392	6,526
Deposits:
Noninterest-bearing	281,686	307,299
NOW and money market	322,995	234,154
Savings	85,480	81,408
Time deposits	66,802	64,832
Total deposits	756,963	687,693
Junior subordinated debt	10,125	9,730
Accrued interest payable	43	44
Estimated Fair Value
Financial Assets:
Cash and cash equivalents	191,128	107,934
AFS Investment securities	56,724
Marketable equity securities	3,659
Investment securities		45,722
Loans	555,193	588,938
Accrued interest receivable	8,392	6,526
Deposits:
Noninterest-bearing	281,686	307,299
NOW and money market	322,995	234,154
Savings	85,480	81,408
Time deposits	66,159	64,387
Total deposits	756,320	687,248
Junior subordinated debt	10,125	9,730
Accrued interest payable	$ 43	$ 44

Fair Value Measurements and D47

Fair Value Measurements and Disclosure (Details 2) - Junior Subordinated Debt	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Technique	Discounted cash flow	Discounted cash flow
Valuation technique, discounted cash flow | Significant Unobservable Inputs (Level 3)
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Weighted Average (in hundredths)	6.05%	5.81%

Fair Value Measurements and D48

Fair Value Measurements and Disclosure (Details 3) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
AFS Securities [Abstract]
AFS Investment securities	$ 56,724,000	$ 41,985,000
Marketable equity securities	3,659,000	3,737,000
Total investment securities	60,383,000	45,722,000
Total	60,383,000	45,722,000
Description of Liabilities [Abstract]
Junior subordinated debt	10,125,000	9,730,000
Total	10,125,000	9,730,000
Write down on other real estate owned	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1)
AFS Securities [Abstract]
Marketable equity securities	3,659,000	3,737,000
Total investment securities	3,659,000	3,737,000
Total	3,659,000	3,737,000
Significant Other Observable Inputs (Level 2)
AFS Securities [Abstract]
AFS Investment securities	56,724,000
Total investment securities	56,724,000	41,985,000
Total	56,724,000	41,985,000
Significant Unobservable Inputs (Level 3)
AFS Securities [Abstract]
Total	0	0
Description of Liabilities [Abstract]
Junior subordinated debt	10,125,000	9,730,000
Total	10,125,000	9,730,000
U.S. Government agencies
AFS Securities [Abstract]
AFS Investment securities	30,351,000	19,954,000
U.S. Government agencies | Significant Other Observable Inputs (Level 2)
AFS Securities [Abstract]
AFS Investment securities	30,351,000	19,954,000
U.S. Government sponsored entities & agencies collateralized by mortgage obligations
AFS Securities [Abstract]
AFS Investment securities	26,373,000	22,031,000
U.S. Government sponsored entities & agencies collateralized by mortgage obligations | Significant Other Observable Inputs (Level 2)
AFS Securities [Abstract]
AFS Investment securities	$ 26,373,000	$ 22,031,000

Fair Value Measurements and D49

Fair Value Measurements and Disclosure (Details 4) - Junior Subordinated Debt - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reconciliation of Liabilities [Roll Forward]
Beginning balance	$ 9,641	$ 9,171	$ 9,730	$ 8,832
Gross loss included in earnings	192	264	661	601
Gross loss (gain) related to changes in instrument specific credit risk	272	0	(295)	0
Change in accrued interest	20	6	29	8
Ending balance	10,125	9,441	10,125	9,441
The amount of total (gain) loss for the period included in earnings attributable to the change in unrealized gains or losses relating to liabilities still held at the reporting date	$ 192	$ 264	$ 661	$ 601

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 4,488,000	$ 4,488,000

Accumulated Other Comprehensi51

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			$ 101,352	$ 96,654	$ 96,654
Other comprehensive income (loss)	$ (304)	$ 167	(74)	228
Balance	105,216	99,521	105,216	99,521	101,352
Net unrealized loss on available for sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(248)	(221)	(221)
Reclassification from accumulated other comprehensive income, current period			184
Other comprehensive income (loss)			(300)		(27)
Balance	(364)		(364)		(248)
Unfunded status of the supplemental retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(462)	(383)	(383)
Other comprehensive income (loss)			19		(79)
Balance	(443)		(443)		(462)
Net unrealized gain on junior subordinated debentures
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			0	0	0
Reclassification from accumulated other comprehensive income, current period			1,482
Other comprehensive income (loss)			207		0
Balance	1,689		1,689		0
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(710)	(604)	(604)
Balance	$ 882	$ (376)	$ 882	$ (376)	$ (710)