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Stock Options and Stock Grants | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Options and Stock Grants | (10) Stock Options and Stock Grants We have entered into stock option agreements with certain officers, employees and directors. The stock options generally expire ten years from the date of grant. Employee Stock Options We follow FASB ASC Topic 718, Share-Based Payments, in which compensation expense is recognized only for share-based payments expected to vest. We recognized compensation expense related to stock options of $207 and $181 for the years ended December 31, 2016 and 2015, respectively. As of December 31, 2016, there was approximately $183 of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under our stock option plans. That cost is expected to be recognized over a remaining weighted-average period of 1.7 years. The following table illustrates the various assumptions used to calculate the Black-Scholes option pricing model for options granted for all years presented:
|  | Years Ended December 31, |
|  | 2016 |  |  | 2015 |
Weighted-average risk-free interest rates: |  |  | 1.5 | % |  |  | 1.7 | %
Dividend yield: |  |  | 0.00 | % |  |  | 0.00 | %
Weighted-average expected life of the option: |  |  | 7 years |  |  |  | 7 years |
Weighted-average expected stock price volatility: |  |  | 95 | % |  |  | 95 | %
Weighted-average fair value of the options granted: |  | $ | 0.36 |  |  | $ | 0.36 |
We use the Black−Scholes option pricing model to determine the fair value of stock based compensation. The Black−Scholes model requires us to make several assumptions, including the estimated length of time employees will retain their vested stock options before exercising them (“expected term”), the estimated volatility of our common stock price over the expected term and estimated forfeitures. Expected price volatility of the fiscal 2016 and 2015 grants is based on the daily market rate changes of our stock going back to January 1, 2008. The shares granted in fiscal 2016 and 2015 had a vesting period of three years and a contractual life of 10 years. Forfeitures were estimated at 4% and 4% for the years ended December 31, 2016 and 2015, based on our historical experience. The Black−Scholes model also requires a risk free interest rate, which is based on the U.S. Treasury yield curve in effect at the time of the grant, and the dividend yield on our common stock, which is assumed to be zero since we do not pay dividends and have no current plans to do so in the future. Changes in these assumptions can materially affect the estimate of fair value of stock based compensation and consequently, the related expense recognized on the statement of operations. We recognize stock based compensation expense on a straight-line basis. The following table summarizes the option activity for our employees and directors during the year ended December 31, 2016:
|  | (rounded) |  |  | Weighted Average Exercise Price per |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic |
Options |  | Shares |  |  | Share |  |  | (years) |  |  | Value |
Outstanding on January 1, 2016 |  |  | 2,574,000 |  |  | $ | 0.95 |  |  |  |  |  |  |  |  |
Granted |  |  | 508,000 |  |  | $ | 0.48 |  |  |  |  |  |  |  |  |
Exercised |  |  | (44,000 | ) |  | $ | 0.40 |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (105,000 | ) |  | $ | 3.08 |  |  |  |  |  |  |  |  |
Outstanding on December 31, 2016 |  |  | 2,933,000 |  |  | $ | 0.81 |  |  |  | 6.3 |  |  | $ | 616 |
Exercisable on December 31, 2016 |  |  | 2,053,000 |  |  | $ | 0.96 |  |  |  | 5.3 |  |  | $ | 378 |
Shares available for grant |  |  | 1,196,000 |  |  |  |  |  |  |  |  |  |  |  |  |
The aggregate intrinsic value in the table above is based on our closing stock price of $0.72 on the last business day for the year ended December 31, 2016. During the years ended December 31, 2016 and 2015, the total intrinsic value of our stock options exercised was $19 and $10, respectively. Cash received for option exercises was $18 and $26 during the years ended December 31, 2016 and 2015, respectively. We had approximately 44,000 options exercised during the year ended December 31, 2016, compared to 69,000 in 2015. Based on our election of the “with and without” approach, no realized tax benefits from stock options were recognized for the years ended December 31, 2016 and 2015. Stock Appreciation Rights Prior to 2011, we granted our Outside Directors stock appreciation rights (SARs) under our Amended and Restated 2006 Stock Appreciation Rights Plan and subsequently under our 2010 Equity Plan. The change in fair value of the awards granted during prior years was included in non-cash compensation expense for the years ended December 31, 2016 and 2015. The SARs granted vested immediately and were payable upon the directors’ removal or resignation from the position of director. These awards were accounted for as liability awards, included in accrued expenses as of December 31, 2015, and adjusted to fair value each reporting period. The fair value of the liability on December 31, 2016 and 2015 was zero. During November 2016, all vested SARs were terminated. Those Outside Directors whose vested SARs were cancelled received immediately vested options in the same quantity, and at the same strike price, as their cancelled SARs. The options granted are included in the above chart. We have no remaining SARs outstanding. Restricted Stock As of both December 31, 2016 and 2015, we did not have any unvested non-director restricted stock or performance shares outstanding.

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68057994&loc=d3e25284-112666 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 + Details
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