Employee Benefit Plans (Details)	12 Months Ended
Feb. 28, 2019 Employee
Employee Benefit Plans (Textual)
Number of employee benefit plans	2
Salary reduction by employees and matching contributions	100.00%
Pre-tax contributions	4.00%

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration