Annual report pursuant to Section 13 and 15(d)

Revenue from Contracts with Customers - Performance Obligation (Details)

v3.19.2
Revenue from Contracts with Customers - Performance Obligation (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Mar. 31, 2019
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation $ 119,956
Revenue, expected timing of recognition, period 1 year