Subsequent Event (Details) - Amended Amount - USD ($)	Jul. 31, 2017	May. 31, 2016	May. 09, 2016	Mar. 31, 2016
Subsequent Event [Line Items]
Line of credit, maximum borrowing capacity				$ 15,000,000
Subsequent Event
Subsequent Event [Line Items]
Line of credit, maximum borrowing capacity			$ 7,000,000
Scenario, Forecast | Subsequent Event
Subsequent Event [Line Items]
Line of credit, maximum borrowing capacity	$ 5,000,000	$ 6,000,000