XML 49 R34.htm IDEA: XBRL DOCUMENT
v3.20.4

Shareholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Stockholders' Equity Note [Abstract] |
Schedule of Stock Option Activity | The following is a summary of stock option activity:
| Number of shares |  | Weighted average exercise price
Options outstanding as of December 31, 2019: | 533,484 |  |  | $ | 2.87 |
Granted | 234,000 |  |  | 2.00 |
Exercised | (25,563) |  |  | 2.74 |
Canceled and forfeited | (4,896) |  |  | 3.98 |
Expired | (17,958) |  |  | 5.16 |
Options outstanding as of December 31, 2020: | 719,067 |  |  | $ | 2.53 |
Schedue of Shares Authorized under Stock Option Plans, by Exercise Price Range | The following table summarizes information about options outstanding as of December 31, 2020:
|  | Options Outstanding |  | Options Exercisable
Range of exercise prices |  | Number outstanding as of December 31, 2020 |  | Weighted average remaining contractual life |  | Weighted average exercise price |  | Number exercisable as of December 31, 2020 |  | Weighted average exercise price
$2.00 - $2.00 |  | 237,500 |  |  | 5.79 |  | $ | 2.00 |  |  | 3,500 |  |  | $ | 2.00 |
2.46 - 2.46 |  | 350,000 |  |  | 1.01 |  | 2.46 |  |  | 350,000 |  |  | 2.46 |
2.79- 6.05 |  | 131,567 |  |  | 2.59 |  | 3.67 |  |  | 105,150 |  |  | 3.54 |
$2.00 - $6.05 |  | 719,067 |  |  | 2.88 |  | $ | 2.53 |  |  | 458,650 |  |  | $ | 2.70 |
Schedule of Stock Options Outstanding, Vested and Expected to Vest | Options outstanding that have vested and are expected to vest as of December 31, 2020 are as follows:
| Number of shares |  | Weighted average exercise price |  | Weighted average remaining contractual term |  | Aggregate intrinsic value
Vested | 458,650 |  |  | $ | 2.70 |  |  | 1.30 |  | $ | 131 |
Expected to vest | 244,024 |  |  | 2.22 |  |  | 5.64 |  | 180 |
Total | 702,674 |  |  | $ | 2.54 |  |  | 2.81 |  | $ | 311 |
Schedule of Restricted Stock Units Activity | The following is a summary of restricted stock activity:
| Number of shares |  | Weighted average grant date fair value
Unvested at December 31, 2019: | 3,112,426 |  |  | $ | 4.06 |
Granted | 2,137,817 |  |  | 3.42 |
Vested | (1,834,406) |  |  | 3.93 |
Canceled | (239,232) |  |  | 4.28 |
Unvested at December 31, 2020: | 3,176,605 |  |  | $ | 3.68 |
Expected to vest after December 31, 2020 | 2,947,031 |  |  | $ | 3.68 |
Stock-Based Compensation, Valuation Assumptions | The fair value of stock-based compensation was determined using the Black-Scholes option pricing model and the following weighted average assumptions:
| Year Ended December 31,
| 2020 |  | 2019 |  |
Stock Option Plans: |  |  |  |  |
Risk free interest rate | 2.00 | % |  | 2.47 | % |  |
Expected dividend yield | 0 | % |  | 0 | % |  |
Expected term (in years) | 3.75 |  | 5.00 |  |
Volatility | 64 | % |  | 66 | % |  |
Employee Stock Purchase Plan: |  |  |  |  |
Risk free interest rate | 0.79 | % |  | 2.05 | % |  |
Expected dividend yield | 0 | % |  | 0 | % |  |
Expected term (in years) | 1.05 |  | 1.05 |  |
Volatility | 65 | % |  | 65 | % |  |

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration