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Equity (Tables) | 12 Months Ended
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Dec. 31, 2015
Equity [Abstract] |
Schedule of 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):
|  | 2014 |  |  | 2015 |
Risk-free interest rate |  |  | 2.1 | % |  |  | 2.1 | %
Expected term of options, in years |  |  | 7.0 |  |  |  | 8.6 |
Expected annual volatility |  |  | 64 | % |  |  | 63 | %
Expected dividend yield |  |  | — | % |  |  | — | %
Determined weighted average grant date fair value per option |  | $ | 1.36 |  |  | $ | 0.51 |
Summary of Stock Option Plans | A summary of the Company’s option plans as of December 31, 2014 and 2015, as well as changes during each of the years then ended, is presented below:
|  | 2014 |  |  | 2015 |
|  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |  |  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 1,401,658 |  |  | $ | 5.49 |  |  |  | 1,812,428 |  |  | $ | 4.51 |
Granted at market price |  |  | 664,103 |  |  |  | 2.14 |  |  |  | 687,654 |  |  |  | 0.75 |
Exercised * |  |  | (33,938 | ) |  |  | 2.51 |  |  |  | — |  |  |  | — |
Forfeited or expired |  |  | (219,395 | ) |  |  | 3.96 |  |  |  | (135,164 | ) |  |  | 2.91 |
Outstanding at end of year |  |  | 1,812,428 |  |  |  | 4.51 |  |  |  | 2,364,918 |  |  |  | 3.51 |
Exercisable at end of year |  |  | 1,128,434 |  |  | $ | 5.56 |  |  |  | 1,778,503 |  |  | $ | 4.16 |
* All shares issued in connection with option exercises were newly issued shares.
Summary of Option Exercises between Cashless Net Exercises and Cash Exercises | The breakdown of option exercises between cashless net exercises and cash exercises is as follows the year ended December 31, 2014 (there were no option exercises in the year ended December 31, 2015):
|  | Shares granted in net exercise of options |  |  | Options forfeited in net exercise of options |  |  | Total net exercise options |  |  | Weighted average exercise price for net exercise options |  |  | Options exercised for cash |  |  | Weighted average exercise price for options exercised for cash |
Year ended December 31, 2014 |  |  | 33,938 |  |  |  | 76,062 |  |  |  | 110,000 |  |  | $ | 2.51 |  |  |  | — |  |  |  | — |
Summary Information Regarding to Options Outstanding and Exercisable | Summary information regarding the options outstanding and exercisable at December 31, 2015 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) |  |  |  |
$0.20 – $1.06 |  |  | 802,454 |  |  |  | 7.8 |  |  | $ | 0.79 |  |  |  | 362,025 |  |  | $ | 0.85 |
$1.68 – $2.56 |  |  | 342,152 |  |  |  | 5.6 |  |  | $ | 1.76 |  |  |  | 288,818 |  |  | $ | 1.77 |
$3.51 – $5.00 |  |  | 426,264 |  |  |  | 3.4 |  |  | $ | 4.19 |  |  |  | 361,946 |  |  | $ | 4.22 |
$5.05 – $5.91 |  |  | 320,000 |  |  |  | 2.4 |  |  | $ | 5.21 |  |  |  | 320,000 |  |  | $ | 5.21 |
$6.31 - $7.57 |  |  | 310,689 |  |  |  | 4.1 |  |  | $ | 6.95 |  |  |  | 290,689 |  |  | $ | 6.91 |
$7.60 - $11.42 |  |  | 163,359 |  |  |  | 3.8 |  |  | $ | 8.82 |  |  |  | 155,025 |  |  | $ | 8.87 |
|  |  | 2,364,918 |  |  |  |  |  |  |  |  |  |  |  | 1,778,503 |  |  |  |  |
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, |
|  | 2014 |  |  | 2015 |
Cost of sales* |  | $ | 2 |  |  | $ | 16 |
Research and development expense* |  |  | 33 |  |  |  | 4 |
Selling, general and administrative expense* |  |  | 830 |  |  |  | 641 |
Total |  | $ | 865 |  |  | $ | 661 |
* Includes $16, $4 and $59 in 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. Includes $2 in Cost of sales in the year ended December 31, 2014 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, 2014 and 2015, as well as changes during the years then ended, is presented below:
|  | 2014 |  | 2015 |
|  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |  |  | Number of Options (in shares) |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 243,924 |  |  | $ | 1.78 |  |  |  | 239,524 |  |  | $ | 1.67 |
Granted at fair value |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Exercised |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Forfeited |  |  | (4,400 | ) |  | $ | 2.41 |  |  |  | — |  |  | $ | — |
Outstanding at end of year |  |  | 239,524 |  |  | $ | 1.67 |  |  |  | 239,524 |  |  | $ | 1.65 |
Exercisable at end of year |  |  | 101,904 |  |  | $ | 1.45 |  |  |  | 239,524 |  |  | $ | 1.65 |
Summary Information Regarding Options Plan Outstanding and Exercisable | Summary information regarding the options under the Plan outstanding and exercisable at December 31, 2015 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) |  |  |  |
$1.05 – $1.26 |  |  | 147,770 |  |  |  | 2.6 |  |  | $ | 1.18 |  |  |  | 147,770 |  |  | $ | 1.18 |
$2.40* |  |  | 91,754 |  |  |  | 2.6 |  |  | $ | 2.40 |  |  |  | 91,754 |  |  | $ | 2.40 |
|  |  | 239,524 |  |  |  |  |  |  | $ | 1.65 |  |  |  | 239,524 |  |  | $ | 1.65 |
*The exercise price of these options are NIS 9.38 translated to US dollars using the year end exchange rates (NIS 3.89 and NIS 3.90 for the years ended December 31, 2014 and 2015, respectively).
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:
|  | 2014 |  |  | 2015 |
|  | Number of shares underlying warrants |  |  | Weighted Average Exercise Price |  |  | Number of shares underlying warrants |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 285,281 |  |  | $ | 3.18 |  |  |  | 2,642,423 |  |  | $ | 1.50 |
Granted |  |  | 2,357,142 |  |  | $ | 1.30 |  |  |  | — |  |  |  | — |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited or expired |  |  | — |  |  |  | — |  |  |  | (23,000 | ) |  | $ | 3.68 |
Outstanding and exercisable at end of year |  |  | 2,642,423 |  |  | $ | 1.50 |  |  |  | 2,619,423 |  |  | $ | 1.48 |

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