XML 37 R21.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Stock-Based Compensation and Warrants (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based Compensation Arrangement by Share-based Payment Award Options and Warrants Vested and Expected to Vest Outstanding and Exercisable [Table Text Block] | The assumptions used for the years ended December 31, 2017, 2016 and 2015 are as follows:
|  | Year ended December 31, |
|  | 2017 |  | 2016 |  | 2015 |
Exercise price |  | $ | 0.52 – $0.87 |  | $ | 0.80 – $2.66 |  | $ | 1.54 – $2.76 |
Expected dividends |  |  | 0 | % |  | 0 | % |  | 0 | %
Expected volatility |  |  | 83% – 96 | % |  | 96% – 123 | % |  | 88% – 131 | %
Risk free interest rate |  |  | 1.67% – 2.28 | % |  | 1.40% – 2.13 | % |  | 1.32% – 2.19 | %
Expected life of option |  |  | 4 – 7 years |  |  | 7 years |  |  | 5 years – 10 years |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of stock option activities for the years ended December 31, 2017, 2016 and 2015, is as follows:
|  | Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value |
Balance - December 31, 2014 |  |  | 5,981,106 |  | $ | 2.01 |  |  | 5.80 years |  | $ | 685,000 |
Granted |  |  | 3,781,666 |  |  | 2.37 |  |  |  |  |  |  |
Exercised |  |  | (35,008) |  |  | 1.16 |  |  |  |  | $ | 44,000 |
Expired |  |  | (483,332) |  |  | 2.48 |  |  |  |  |  |  |
Forfeited |  |  | (302,502) |  |  | 1.91 |  |  |  |  |  |  |
Balance - December 31, 2015 |  |  | 8,941,930 |  |  | 2.14 |  |  | 5.67 years |  | $ | 2,900,000 |
Granted |  |  | 3,861,425 |  |  | 0.98 |  |  |  |  |  |  |
Exercised |  |  | (445,334) |  |  | 1.83 |  |  |  |  | $ | 137,488 |
Expired |  |  | (338,529) |  |  | 1.96 |  |  |  |  |  |  |
Forfeited |  |  | (383,265) |  |  | 2.26 |  |  |  |  |  |  |
Balance - December 31, 2016 |  |  | 11,636,227 |  |  | 1.77 |  |  | 5.49 years |  | $ | 194,355 |
Granted |  |  | 3,159,177 |  |  | 0.59 |  |  |  |  |  |  |
Exercised |  |  | (418,773) |  |  | 0.40 |  |  |  |  | $ | 163,050 |
Expired |  |  | (667,628) |  |  | 2.21 |  |  |  |  |  |  |
Forfeited |  |  | (1,144,905) |  |  | 1.20 |  |  |  |  |  |  |
Balance -December 31, 2017 - outstanding |  |  | 12,564,098 |  | $ | 1.55 |  |  | 4.60 years |  | $ | 1,800 |
Balance - December 31, 2017 - exercisable |  |  | 7,805,796 |  | $ | 1.96 |  |  | 3.43 years |  | $ | 1,800 |
Grant date fair value of options granted - December 31, 2017 |  |  |  |  | $ | 1,164,732 |  |  |  |  |  |  |
Weighted average grant date fair value - December 31, 2017 |  |  |  |  | $ | 0.37 |  |  |  |  |  |  |
Grant date fair value of options granted - December 31, 2016 |  |  |  |  | $ | 3,091,000 |  |  |  |  |  |  |
Weighted average grant date fair value - December 31, 2016 |  |  |  |  | $ | 0.80 |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
Options Outstanding |  | Options Exercisable |
Range of Exercise Price |  | Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |
$ | 0.09 – $2.00 |  |  | 7,244,099 |  | $ | .85 |  |  | 5.28 years |  |  | 3,082,751 |  | $ | 1.13 |  |  | 3.41 years |
$ | 2.01 – $3.00 |  |  | 5,319,999 |  |  | 2.49 |  |  | 3.66 years |  |  | 4,723,045 |  |  | 2.50 |  |  | 3.44 years |
$ | 0.09 – $3.00 |  |  | 12,564,098 |  | $ | 1.55 |  |  | 4.60 years |  |  | 7,805,796 |  | $ | 1.96 |  |  | 3.43 years |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block] | The assumptions used by the Company are summarized in the following table:
|  |  |  |  |  | Series A |  |  |  |  |  |  | Series B |
|  | December 31, 2017 |  |  | December 31, 2016 |  |  | Issuance Date |  |  | December 31, 2016 |  | Issuance Date |
Closing stock price |  | $ | 0.51 |  |  | $ | 0.76 |  |  | $ | 0.89 |  |  | $ | 0.76 |  | $ | 0.89 |
Expected dividends |  |  | 0 | % |  |  | 0 | % |  |  | 0 | % |  |  | 0 | % |  | 0 | %
Expected volatility |  |  | 80 | % |  |  | 85 | % |  |  | 85 | % |  |  | 90 | % |  | 85 | %
Risk free interest rate |  |  | 1.97 | % |  |  | 1.67 | % |  |  | 1.58 | % |  |  | 0.85 | % |  | 0.81 | %
Expected life of warrant |  |  | 2.9 years |  |  |  | 3.9 years |  |  |  | 4.0 years |  |  |  | 1.0 years |  |  | 1.1 years |
The assumptions used by the Company are summarized in the following table:
|  | December 31, 2017 |  |  | December 31, 2016 |  |  | Issuance Date |
Closing stock price |  | $ | 0.51 |  |  | $ | 0.76 |  |  | $ | 1.75 |
Expected dividends |  |  | 0 | % |  |  | 0 | % |  |  | 0 | %
Expected volatility |  |  | 80 | % |  |  | 95 | % |  |  | 95 | %
Risk free interest rate |  |  | 1.86 | % |  |  | 1.41 | % |  |  | 1.39 | %
Expected life of warrant |  |  | 1.79 years |  |  |  | 2.79 years |  |  |  | 5.0 years |
Schedule Of Estimated Fair Value Of The Warrant Liability [Table Text Block] | The following table summarizes the estimated fair value of the warrant liability (in thousands):
Balance at December 31, 2015 |  | $ | 10,566 |
Issuance of warrants |  |  | 15,667 |
Change in fair value of warrant liability |  |  | (11,412) |
Balance at December 31, 2016 |  |  | 14,821 |
Change in fair value of warrant liability |  |  | (10,738) |
Balance at December 31, 2017 |  | $ | 4,083 |
Schedule of Warrant Activity [Table Text Block] | A summary of warrant activity for the Company for the years ended December 31, 2017 and 2016 is as follows:
|  | Number of Warrants |  | Weighted Average Exercise Price |
Balance at December 31, 2015 |  |  | 7,908,899 |  | $ | 1.79 |
Granted |  |  | 50,000,000 |  |  | 1.58 |
Exercised |  |  | - |  |  | - |
Forfeited |  |  | (567,257) |  |  | 2.35 |
Balance at December 31, 2016 |  |  | 57,341,642 |  |  | 1.60 |
Granted |  |  | - |  |  | - |
Exercised |  |  | - |  |  | - |
Forfeited |  |  | (25,311,834) |  |  | 1.72 |
Balance at December 31, 2017 |  |  | 32,029,809 |  | $ | 1.50 |
Schedule of Warrant Outstanding and Exercisable [Table Text Block] | A summary of all outstanding and exercisable warrants as of December 31, 2017 is as follows:
Exercise Price |  | Warrants Outstanding |  | Warrants Exercisable |  | Weighted Average Remaining Contractual Life |
$ | 1.43 |  |  | 25,000,000 |  |  | 25,000,000 |  |  | 2.88 years |
$ | 1.75 |  |  | 7,029,809 |  |  | 7,029,809 |  |  | 1.78 years |
$ | 1.50 |  |  | 32,029,809 |  |  | 32,029,809 |  |  | 2.64 years |

X
- Definition Tabular disclosure of estimated fair value of the warrant liability. + References No definition available. + Details
Name: | syn_ScheduleOfEstimatedFairValueOfWarrantLiabilityTableTextBlock
Namespace Prefix: | syn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of warrant activity. + References No definition available. + Details
Name: | syn_ScheduleOfWarrantActivityTableTextBlock
Namespace Prefix: | syn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure relates to warrant outstanding and exercisable. + References No definition available. + Details
Name: | syn_ScheduleOfWarrantOutstandingAndExercisableTableTextBlock
Namespace Prefix: | syn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure relates to share based compensation arrangement by share based payment award options and warrants vested and expected to vest outstanding and exercisable. + References No definition available. + Details
Name: | syn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndWarrantsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | syn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets, liabilities, and financial instruments classified in shareholders' equity that are measured on a recurring and/or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&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 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration