Note 12 - Impacts of COVID-19 (Details Textual) - COVID 19 [Member]	Sep. 30, 2022
Percentage of Employees Working in Office	60.00%
Percentage of Employees Working from Home	40.00%

The percentage of employees working in the office.

No definition available.

Name:	sofo_PercentageOfEmployeesWorkingInOffice
Namespace Prefix:	sofo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant