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Equity (Tables) | 12 Months Ended
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Dec. 31, 2016
Equity [Abstract] |
Schedule of Stock Options Fair Value Assumptions Estimated Using Black-Scholes Pricing Model | The Company utilized the Black-Scholes option-pricing model to estimate fair value, utilizing the following assumptions for the respective years (all in weighted averages):
|  | 2016 |  |  | 2015 |
Risk-free interest rate |  |  | 1.5 | % |  |  | 2.1 | %
Expected term of options, in years |  |  | 6.5 |  |  |  | 8.6 |
Expected annual volatility |  |  | 80 | % |  |  | 63 | %
Expected dividend yield |  |  | — | % |  |  | — | %
Determined weighted average grant date fair value per option |  | $ | 0.11 |  |  | $ | 0.51 |
Summary of Stock Option Plans | A summary of the Company’s option plans as of December 31, 2016 and 2015, as well as changes during each of the years then ended, is presented below:
|  | 2016 |  |  | 2015 |
|  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |  |  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 2,364,918 |  |  | $ | 3.51 |  |  |  | 1,812,428 |  |  | $ | 4.51 |
Granted at market price |  |  | 65,000 |  |  |  | 0.15 |  |  |  | 687,654 |  |  |  | 0.75 |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited or expired |  |  | (379,549 | ) |  |  | 2.29 |  |  |  | (135,164 | ) |  |  | 2.91 |
Outstanding at end of year |  |  | 2,050,369 |  |  |  | 3.62 |  |  |  | 2,364,918 |  |  |  | 3.51 |
Exercisable at end of year |  |  | 2,004,534 |  |  | $ | 3.69 |  |  |  | 1,778,503 |  |  | $ | 4.16 |
Summary of Information Regarding to Options Outstanding and Exercisable | Summary information regarding the options outstanding and exercisable at December 31, 2016 is as follows:
|  |  | Outstanding |  |  | Exercisable |
Range of Exercise Prices |  |  | Number Outstanding |  |  | Weighted Average Remaining Contractual Life |  |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
|  |  | (in shares) |  |  | (in years) |  |  |  |  |  | (in shares) |  |  |  |
$0.14 – $1.06 |  |  |  | 677,301 |  |  |  | 5.8 |  |  | $ | 0.74 |  |  |  | 644,800 |  |  | $ | 0.76 |
$1.68 – $2.49 |  |  |  | 307,985 |  |  |  | 4.7 |  |  | $ | 1.74 |  |  |  | 294,651 |  |  | $ | 1.75 |
$3.51 – $5.00 |  |  |  | 279,368 |  |  |  | 3.5 |  |  | $ | 4.22 |  |  |  | 279,368 |  |  | $ | 4.22 |
$5.05 – $5.91 |  |  |  | 320,000 |  |  |  | 1.4 |  |  | $ | 5.21 |  |  |  | 320,000 |  |  | $ | 5.21 |
$6.31 - $7.57 |  |  |  | 302,356 |  |  |  | 3.2 |  |  | $ | 6.90 |  |  |  | 302,356 |  |  | $ | 6.97 |
$7.60 - $11.42 |  |  |  | 163,359 |  |  |  | 2.8 |  |  | $ | 8.82 |  |  |  | 163,359 |  |  | $ | 8.82 |
|  |  |  | 2,050,369 |  |  |  |  |  |  |  |  |  |  |  | 2,004,534 |  |  |  |  |
Stock-Based Compensation Expense Included in Statements of Operations | Stock-based compensation expense included in the Company’s Consolidated Statements of Operations was:
|  | Year ended December 31, |
|  | 2016 |  |  | 2015 |
Cost of sales* |  | $ | — |  |  | $ | 16 |
Research and development expense* |  |  | — |  |  |  | 4 |
Selling, general and administrative expense* |  |  | 89 |  |  |  | 641 |
Total |  | $ | 89 |  |  | $ | 661 |
* Includes $16, $4 and $59 in Cost of sales, Research and development expense and Selling, general and administrative expense, respectively, for the year ended December 31, 2015 with respect to DSIT. See Note 4 with respect to stock-based compensation expense associated with discontinued operations.
Summary Status of DSIT Plan | A summary status of the DSIT Plan as of December 31, 2016 and 2015, as well as changes during the years then ended, is presented below:
|  | 2016 |  |  | 2015 |
|  | Number of Options (in shares)* |  |  | Weighted Average Exercise Price |  |  | Number of Options (in shares)* |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 239,524 |  |  | $ | 1.65 |  |  |  | 239,524 |  |  | $ | 1.67 |
Granted at fair value |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Exercised |  |  | (239,524 | ) |  | $ | 1.63 |  |  |  | — |  |  | $ | — |
Forfeited |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Outstanding at end of year |  |  | — |  |  | $ | — |  |  |  | 239,524 |  |  | $ | 1.65 |
Exercisable at end of year |  |  | — |  |  | $ | — |  |  |  | 239,524 |  |  | $ | 1.65 |
*The exercise price of 91,754 of these options was NIS 9.38 translated to US dollars using following exchange rates: NIS 3.89 for December 31, 2014, NIS 3.90 for December 31, 2015, and 3.97 for the Closing Date.
Summary of Warrant Activity | The Company has issued warrants at exercise prices equal to or greater than market value of the Company’s common stock at the date of issuance. A summary of warrant activity follows:
|  | 2016 |  |  | 2015 |
|  | Number of shares underlying warrants |  |  | Weighted Average Exercise Price |  |  | Number of shares underlying warrants |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 2,619,423 |  |  | $ | 1.48 |  |  |  | 2,642,423 |  |  | $ | 1.50 |
Granted |  |  | 35,000 |  |  | $ | 0.13 |  |  |  | — |  |  |  | — |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited or expired |  |  | — |  |  |  | — |  |  |  | (23,000 | ) |  | $ | 3.68 |
Outstanding and exercisable at end of year |  |  | 2,654,423 |  |  | $ | 1.46 |  |  |  | 2,619,423 |  |  | $ | 1.48 |
Schedule of Warrant Fair Value Assumptions Estimated Using Black-Scholes Pricing Model | The fair value of the warrants granted ($0.08 per warrant) was estimated on the grant dates using the Black-Scholes option-pricing model with the following weighted average assumptions:
Risk-free interest rate |  |  | 1.79 | %
Expected term of warrants |  |  | 7.0 years |
Expected annual volatility |  |  | 78 | %
Expected dividend yield |  |  | — | %

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