Commitments and Contingencies - Future Minimum Lease Payments (Details)	Apr. 30, 2016 USD ($)
Year ending April 30:
2017	$ 252,000
2018	174,000
2019	130,000
2020	86,000
Thereafter	0
Total	642,000
Commitments | Non-Related Party
Year ending April 30:
2017	162,000
2018	84,000
2019	85,000
2020	86,000
Thereafter	0
Total	417,000
Commitments | Related Party
Year ending April 30:
2017	90,000
2018	90,000
2019	45,000
2020	0
Thereafter	0
Total	$ 225,000