XML 136 R20.htm IDEA: XBRL DOCUMENT
v3.21.1

Defined Contribution Plan | 12 Months Ended
--- | ---
Dec. 31, 2020
Defined Contribution Plan |
Defined Contribution Plan | NOTE 14 - Defined Contribution Plan In 2014, the Company adopted a qualified 401(K) plan (“the Plan”), in which all employees over the age of 21 may participate. The Company makes a Safe Harbor contribution match of 100% of each participant’s contribution up to 3% of salary, and 50% of the next 2% of salary contributed. The costs of matching contributions were $55,321 in 2020 and $45,080 in 2019.

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

X
- Definition Defined Contribution Plan Disclosure [Text Block] + References No definition available. + Details
Name: | SGLB_DefinedContributionPlanDisclosureTextBlock
Namespace Prefix: | SGLB_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration