XML 59 R47.htm IDEA: XBRL DOCUMENT v3.4.0.3

11. GE Royalty Obligation (Details)	3 Months Ended
	Mar. 31, 2016 USD ($)
Tier 1 | Maximum
Net Sales in Contract Year	$ 0
Tier 1 | Minimum
Net Sales in Contract Year	$ 50,000,000
Percentage of the Contract Year Net Sales owed to GE	7.00%
Tier 2 | Maximum
Net Sales in Contract Year	$ 100,000,000
Tier 2 | Minimum
Net Sales in Contract Year	$ 50,000,001
Percentage of the Contract Year Net Sales owed to GE	6.00%
Tier 3 | Minimum
Net Sales in Contract Year	$ 100,000,001
Percentage of the Contract Year Net Sales owed to GE	5.00%

X

- References

No definition available.

+ Details

Name:	SAFE_NetSalesInContractYear
Namespace Prefix:	SAFE_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	SAFE_PercentageOfContractYearNetSalesOwedToGe
Namespace Prefix:	SAFE_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=SAFE_Tier1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=SAFE_Tier2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=SAFE_Tier3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: