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Note 8 - Employee Benefit Plans | 12 Months Ended
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Dec. 31, 2017
Notes to Financial Statements |
Pension and Other Postretirement Benefits Disclosure [Text Block] | Note 8 : Employee Benefit Plans 401 (k) Plan The Company has a Retirement Accumulation Plan qualifying under IRS Code Section 401 (k), in which NBI, NBB and NBFS are participating employers. Eligible participants may contribute up to 100% of their total annual compensation to the plan, subject to certain limits based on federal tax laws. Employee contributions are matched by the employer based on a percentage of an employee’s total annual compensation contributed to the plan. For the years ended December 31, 2017, 2016 and 2015, the Company contributed $340, $315 and $294, respectively, to the plan. Employee Stock Ownership Plan The Company has a non-leveraged Employee Stock Ownership Plan (ESOP) which enables employees of NBI and its subsidiaries who have one year of service and who have attained the age of 21 prior to the plan’s January 1 and July 1 enrollment dates to own NBI common stock. Contributions to the ESOP, which are not mandatory, are determined annually by the Board of Directors. Contribution expense amounted to $200, $150 and $200 in the years ended December 31, 2017, 2016 and 2015, respectively. Dividends on ESOP shares are charged to retained earnings. As of December 31, 2017, the number of shares held by the ESOP was 236,221. All shares held by the ESOP are treated as outstanding in computing the Company’s basic net income per share. Upon reaching age 55 with ten years of plan participation, a vested participant has the right to diversify 50% of his or her allocated ESOP shares and NBI or the ESOP, with the agreement of the Trustee, is obligated to purchase those shares. The ESOP contains a put option which allows a withdrawing participant to require the Company or the ESOP, if the plan administrator agrees, to purchase his or her allocated shares if the shares are not readily tradable on an established market at the time of distribution. Salary Continuation Plan The Company has a non-qualified Salary Continuation Plan for certain key officers. The plan provides the participating officers with supplemental retirement income, payable for the greater of 15 years after retirement or the officer’s lifetime. The expense accrued for the plans in 2017, 2016, and 2015, based on the present value of the retirement benefits, amounted to $272, $242, and $396, respectively. The plan is unfunded. However bank-owned life insurance has been acquired on the life of the key employees in amounts sufficient to discharge the obligations of the agreement. Defined Benefit Plan The Company’s defined benefit pension plan covers substantially all employees. The plan benefit formula is based upon the length of service of retired employees and a percentage of qualified W- 2 compensation during their final years of employment. Information pertaining to activity in the plan is as follows:
|  | December 31 , |
|  | 201 7 |  |  | 201 6 |  |  | 201 5 |
Change in benefit obligatio n |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation at beginning of year |  | $ | 21,059 |  |  | $ | 20,427 |  |  | $ | 19,324 |
Service cost |  |  | 692 |  |  |  | 694 |  |  |  | 620 |
Interest cost |  |  | 743 |  |  |  | 757 |  |  |  | 669 |
Actuarial loss |  |  | 1,417 |  |  |  | 198 |  |  |  | 798 |
Benefits paid |  |  | (419 | ) |  |  | (1,017 | ) |  |  | (984 | )
Projected benefit obligation at end of year |  | $ | 23,492 |  |  | $ | 21,059 |  |  | $ | 20,427 |
Change in plan asset s |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 17,038 |  |  | $ | 16,131 |  |  | $ | 17,130 |
Actual return on plan assets |  |  | 2,302 |  |  |  | 1,113 |  |  |  | (155 | )
Employer contribution |  |  | 4,507 |  |  |  | 811 |  |  |  | 140 |
Benefits paid |  |  | (419 | ) |  |  | (1,017 | ) |  |  | (984 | )
Fair value of plan assets at end of year |  | $ | 23,428 |  |  | $ | 17,038 |  |  | $ | 16,131 |
Funded status at the end of the yea r |  | $ | (64 | ) |  | $ | (4,021 | ) |  | $ | (4,296 | )
Amounts recognized in the Consolidated Balance Shee t |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax asset |  | $ | 13 |  |  | $ | 1,407 |  |  | $ | 1,504 |
Other liabilities |  |  | (64 | ) |  |  | (4,021 | ) |  |  | (4,296 | )
Total amounts recognized in the Consolidated Balance Sheet |  | $ | (51 | ) |  | $ | (2,614 | ) |  | $ | (2,792 | )
Amounts recognized in accumulated other comprehensive (loss), ne t |  |  |  |  |  |  |  |  |  |  |  |
Net gain (loss) |  | $ | (7,923 | ) |  | $ | (8,250 | ) |  | $ | (8,627 | )
Prior service cost |  |  | 340 |  |  |  | 449 |  |  |  | 559 |
Deferred tax asset |  |  | 1,592 |  |  |  | 2,730 |  |  |  | 2,798 |
Amount recognized |  | $ | (5,991 | ) |  | $ | (5,071 | ) |  | $ | (5,270 | )
Accrued/Prepaid benefit cost, ne t |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation |  | $ | (23,492 | ) |  | $ | (21,059 | ) |  | $ | (20,427 | )
Fair value of assets |  |  | 23,428 |  |  |  | 17,038 |  |  |  | 16,131 |
Unrecognized net actuarial loss |  |  | 7,923 |  |  |  | 8,250 |  |  |  | 8,627 |
Unrecognized prior service cost |  |  | (340 | ) |  |  | (449 | ) |  |  | (559 | )
Deferred tax liability |  |  | (1,579 | ) |  |  | (1,323 | ) |  |  | (1,294 | )
Prepaid benefit cost included in other assets |  | $ | 5,940 |  |  | $ | 2,457 |  |  | $ | 2,478 |
Components of net periodic benefit cos t |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 692 |  |  | $ | 694 |  |  | $ | 620 |
Interest cost |  |  | 743 |  |  |  | 757 |  |  |  | 669 |
Expected return on plan assets |  |  | (1,097 | ) |  |  | (1,110 | ) |  |  | (1,166 | )
Amortization of prior service cost |  |  | (110 | ) |  |  | (110 | ) |  |  | (110 | )
Recognized net actuarial loss |  |  | 540 |  |  |  | 572 |  |  |  | 414 |
Net periodic benefit cost |  | $ | 768 |  |  | $ | 803 |  |  | $ | 427 |
Other changes in plan assets and benefit obligations recognized in other comprehensive los s |  |  |  |  |  |  |  |  |  |  |  |
Net (gain) loss |  | $ | (328 | ) |  | $ | (377 | ) |  | $ | 1,705 |
Amortization of prior service cost |  |  | 110 |  |  |  | 110 |  |  |  | 110 |
Deferred income tax expense (benefit) |  |  | 46 |  |  |  | 93 |  |  |  | (635 | )
Total recognized |  | $ | (172 | ) |  | $ | (174 | ) |  | $ | 1,180 |
Total recognized in net periodic benefit cost and other comprehensive loss |  | $ | 550 |  |  | $ | 536 |  |  | $ | 2,242 |
Weighted average assumptions at end of the yea r |  |  |  |  |  |  |  |  |  |  |  |
Discount rate used for net periodic pension cost |  |  | 4.00 | % |  |  | 4.00 | % |  |  | 3.75 | %
Discount rate used for disclosure |  |  | 3.50 | % |  |  | 4.00 | % |  |  | 4.00 | %
Expected return on plan assets |  |  | 7.50 | % |  |  | 7.50 | % |  |  | 7.50 | %
Rate of compensation increase |  |  | 3.00 | % |  |  | 3.00 | % |  |  | 3.00 | %
Long Term Rate of Return The Company, as plan sponsor, selects the expected long-term rate-of-return-on-assets assumption in consultation with its investment advisors and actuary. This rate is intended to reflect the average rate of earnings expected to be earned on the funds invested or to be invested to provide plan benefits. Historical performance is reviewed, especially with respect to real rates of return (net of inflation), for the major asset classes held or anticipated to be held by the trust, and for the trust itself. Undue weight is not given to recent experience, which may not continue over the measurement period, but higher significance is placed on current forecasts of future long-term economic conditions. Because assets are held in a qualified trust, anticipated returns are not reduced for taxes. Further, and solely for this purpose, the plan is assumed to continue in force and not terminate during the period during which assets are invested. However, consideration is given to the potential impact of current and future investment policy, cash flow into and out of the trust, and expenses (both investment and non-investment) typically paid from plan assets (to the extent such expenses are not explicitly estimated within periodic cost). The Company, as plan sponsor, has adopted a Pension Administrative Committee Policy (the Policy) for monitoring the investment management of its qualified plans. The Policy includes a statement of general investment principles and a listing of specific investment guidelines, to which the committee may make documented exceptions. The guidelines state that, unless otherwise indicated, all investments that are permitted under the Prudent Investor Rule shall be permissible investments for the defined benefit pension plan. All plan assets are to be invested in marketable securities. Certain investments are prohibited, including commodities and future contracts, private placements, repurchase agreements, options and derivatives. The Policy establishes quality standards for fixed income investments and mutual funds included in the pension plan trust. The Policy also outlines diversification standards. The preferred target allocation for the assets of the defined benefit pension plan is 65% in equity securities and 35% in fixed income securities. Equity securities include investments in large-cap and mid-cap companies primarily located in the United States, although a small number of international large-cap companies are included. There are also investments in mutual funds holding the equities of large-cap and mid-cap U.S. companies. Fixed income securities include U.S. government agency securities and corporate bonds from companies representing diversified industries. There are no investments in hedge funds, private equity funds or real estate. Fair value measurements of the pension plan’s assets at December 31, 2017 follow:
|  | Fair Value Measurements at December 31, 20 1 7 |
Asset Category |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
Cash |  | $ | 4,454 |  |  | $ | 4,454 |  |  | $ | --- |  |  | $ | --- |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. companies |  |  | 9,892 |  |  |  | 9,892 |  |  |  | --- |  |  |  | --- |
International companies |  |  | 106 |  |  |  | 106 |  |  |  | --- |  |  |  | --- |
Equities mutual funds (1) |  |  | 1,962 |  |  |  | 1,962 |  |  |  | --- |  |  |  | --- |
U. S. government agencies and corporations |  |  | 51 |  |  |  | --- |  |  |  | 51 |  |  |  | --- |
State and political subdivisions |  |  | 231 |  |  |  | --- |  |  |  | 231 |  |  |  | --- |
Corporate bonds – investment grade (2) |  |  | 6,732 |  |  |  | --- |  |  |  | 6,732 |  |  |  | --- |
Total pension plan assets |  | $ | 23,428 |  |  | $ | 16,414 |  |  | $ | 7,014 |  |  | $ | --- |
| ( 1 ) | This category comprises actively managed equity funds invested in large- cap and mid-cap U.S. companies.
| ( 2 ) | This category represents investment grade bonds of U.S. issue rs from diverse industries.
|  | Fair Value Measurements at December 31, 20 1 6 |
Asset Category |  | Total |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
Cash |  | $ | 207 |  |  | $ | 207 |  |  | $ | --- |  |  | $ | --- |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. companies |  |  | 9,195 |  |  |  | 9,195 |  |  |  | --- |  |  |  | --- |
International companies |  |  | 116 |  |  |  | 116 |  |  |  | --- |  |  |  | --- |
Equities mutual funds (1) |  |  | 966 |  |  |  | 966 |  |  |  | --- |  |  |  | --- |
U. S. government agencies and corporations |  |  | 53 |  |  |  | --- |  |  |  | 53 |  |  |  | --- |
State and political subdivisions |  |  | 230 |  |  |  | --- |  |  |  | 230 |  |  |  | --- |
Corporate bonds – investment grade (2) |  |  | 6,271 |  |  |  | --- |  |  |  | 6,271 |  |  |  | --- |
Total pension plan assets |  | $ | 17,038 |  |  | $ | 10,484 |  |  | $ | 6,554 |  |  | $ | --- |
| ( 1 ) | This category comprises actively managed equity funds invested in large-cap and mid-cap U.S. companies.
| ( 2 ) | This category represents investment grade bonds of U.S. issuers from diverse industries.
The Company’s required minimum pension contribution for 2018 has not yet been determined. Estimated future benefit payments, which reflect expected future service, as appropriate, are as follows:
201 8 |  |  |  | $ | 4,229 |
201 9 |  |  |  | $ | 1,060 |
2020 |  |  |  | $ | 1,630 |
202 1 |  |  |  | $ | 738 |
20 22 |  |  |  | $ | 1,277 |
2023 | - | 2027 |  | $ | 6,546 |

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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