XML 50 R37.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Property and Equipment (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Property and Equipment [Abstract] |
Components of property and equipment |
|  | December 31, |
(dollars in thousands) |  | 2017 |  |  | 2016 |
Land |  | $ | 6,827 |  |  | 6,827 |
Buildings |  |  | 23,990 |  |  | 14,833 |
Leasehold Improvements |  |  | 2,220 |  |  | 2,020 |
Furniture and equipment |  |  | 8,075 |  |  | 7,410 |
Software |  |  | 306 |  |  | 421 |
Construction in process |  |  | 40 |  |  | 6,225 |
|  |  | 41,458 |  |  | 37,736 |
Accumulated depreciation |  |  | (9,224 | ) |  | (9,374 | )
Total property and equipment |  | $ | 32,234 |  |  | 28,362
Schedule of estimated useful lives of property and equipment |
Type of Asset |  | Life in Years
Software |  | 3
Furniture and equipment |  | 5 to 7
Leasehold improvements |  | 5 to 15
Buildings |  | 40

X
- Definition Schedule of estimated useful lives of property plant and equipment. + References No definition available. + Details
Name: | sfst_ScheduleOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock
Namespace Prefix: | sfst_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration