XML 68 R27.htm IDEA: XBRL DOCUMENT v2.4.1.9

10. Stock Options and Warrants (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]

Stock options outstanding

		Weighted Avg. Options				Weighted Avg. Exercise Price
Options, December 31, 2011			24,067,892			$	0.30
Options granted			4,858,000				0.30
Options exercised			(776,667	)			0.47
Options forfeited			(871,127	)			0.98
Options, December 31, 2012			27,278,098			$	0.27
Options granted			207,819				1.17
Options exercised			(115,000	)			0.60
Options forfeited			(7,061,009	)			0.25
Options, December 31, 2013			20,309,908			$	0.28
Options granted			852,122				0.80
Options exercised			(20,000	)			0.30
Options forfeited			(90,000	)			0.91
Options, December 31, 2014			21,052,030			$	0.30

Options outstanding by Per Share Price

		Outstanding Options								Exercisable Options
Option Exercise Price Per Share		Shares				Life (Years)		Weighted Average Exercise Price		Shares				Weighted Average Exercise Price
$ 0.21 - $ 0.99			20,788,801			6.1		$0.29			18,229,381			$0.28
$ 1.00 - $ 1.99			263,229			5.2		$1.22			263,229			$1.28
			21,052,030					$0.30			18,492,610			$0.29

Assumptions

2014

2013

2012

Expected life (years)

1.5 – 5.5

1.5 – 5.5

5.0 – 7.0

Risk free interest rate

0.12 – 1.70%

0.34 – 1.65%

0.62 – 1.27%

Volatility

123 – 135%

127 – 130%

125 – 140%

Expected dividend yield

0%

0%

0%

Warrants outstanding

		Warrants				Weighted Avg. Exercise Price
Warrants outstanding, December 31, 2011			49,106,280			$	0.32
Warrants granted			9,273,316				0.31
Warrants exercised			(12,039,846	)			0.29
Warrants cancelled			(4,134,243	)			0.49
Warrants outstanding, December 31, 2012			42,205,507			$	0.31
Warrants granted			150,000				0.30
Warrants exercised			(29,037,389	)			0.29
Warrants cancelled			(1,554,152	)			0.33
Warrants outstanding, December 31, 2013			11,763,966			$	0.34
Warrants granted			761,037				0.71
Warrants exercised			(4,690,947	)			0.30
Warrants cancelled			(2,141,969	)			0.46
Warrants outstanding, December 31, 2014			5,692,087			$	0.38

Warrants outstanding by Per Share Price

		Outstanding Warrants								Exercisable Warrants
Warrant Exercise Price Per Share		Shares				Life (Years)		Weighted Average Exercise Price		Shares				Weighted Average Exercise Price
$ 0.25 - $ 0.99			5,572,087			3.0		$0.36			5,177,087			$0.34
$ 1.00 - $ 1.99			120,000			1.0		$1.01			120,000			$1.01
			5,692,087					$0.38			5,297,087			$0.35

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://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

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ 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 (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901



Reference 4: 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=6406099&loc=d3e25284-112666



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 50

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 28

-Article 5

+ Details

Name:	us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Warrants outstanding by Per Share Price

+ References

No definition available.

+ Details

Name:	zero_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockWarrantPlansByExercisePriceRangeTextBlock
Namespace Prefix:	zero_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration