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Note 11 - Stock Awards | 6 Months Ended
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Jun. 30, 2018
Notes to Financial Statements |
Disclosure of Compensation Related Costs, Share-based Payments [Text Block] |
11. | STOCK AWARDS
In accordance with the Company’s 2013 Incentive Plan, stock awards, including stock options and restricted stock, have been granted to certain employees and non-employee directors. Shares of common stock available for distribution to satisfy the grants may consist, in whole or in part, of authorized and unissued shares, treasury shares or shares reacquired by the Company in any manner. Stock-based compensation expense related to stock awards totaled $0.1 million for both of the six -month periods ended June 30, 2018 and 2017. Stock Options Stock option awards have been granted with an exercise price equal to the market price of the Company’s common stock on the date of the grant and have vesting periods ranging from one to three years, with 10 -year contractual terms. The Company recognizes the cost of services received in exchange for stock option awards based on the grant date fair value of the award, with compensation expense recognized on a straight-line basis over the award’s vesting period. The fair value of outstanding awards was determined using the Black-Scholes option pricing model based on the assumptions noted in the table below. Expected volatilities are based on historical volatilities of the Company’s common stock .
|  | 2018 |  |  | 2017 |
Risk-free interest rate |  |  | 2.77 | % |  |  | 2.23 | %
Expected term (in years) |  |  | 7.5 |  |  |  | 7.5 |
Expected stock price volatility |  |  | 28.3 | % |  |  | 25.4 | %
Dividend yield |  |  | 1.50 | % |  |  | 1.50 | %
The following table summarizes the Company's stock option activity for the periods presented.
|  | Six Months Ended |
|  | June 30 , 2018 |  |  | June 30 , 2017 |
|  | Number of Shares |  |  | Average Exercise Price |  |  | Number of Shares |  |  | Average Exercise Price |
Options: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, beginning of period |  |  | 318,000 |  |  | $ | 9.43 |  |  |  | 272,550 |  |  | $ | 8.21 |
Granted |  |  | 62,150 |  |  |  | 11.71 |  |  |  | 68,600 |  |  |  | 13.91 |
Exercised |  |  | — |  |  |  | — |  |  |  | 19,316 |  |  |  | 8.15 |
Expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  |  | 1,450 |  |  |  | 11.05 |  |  |  | 3,333 |  |  |  | 11.79 |
Options outstanding, end of period |  |  | 378,700 |  |  | $ | 9.80 |  |  |  | 318,501 |  |  | $ | 9.41 |
Options exercisable, end of period |  |  | 249,300 |  |  | $ | 8.71 |  |  |  | 208,633 |  |  | $ | 8.20 |
The aggregate intrinsic value of stock options outstanding (calculated as the amount by which the market value of underlying stock exceeds the exercise price of the option) was approximately $0.9 million and $0.8 million as of June 30, 2018 and 2017, respectively. Restricted Stock During the first six months of 2018 and 2017, respectively, 10,520 shares and 7,533 shares of restricted stock were granted. The Company recognizes the cost of services received in exchange for restricted stock awards based on the grant date closing price of the stock, with compensation expense recognized on a straight-line basis over the award’s vesting period.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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