Commitments - Additional Information (Detail) (USD $)	1 Months Ended	6 Months Ended	1 Months Ended
	Apr. 30, 2014	Apr. 30, 2015	Mar. 31, 2015 sqft
Commitments And Contingencies [Line Items]
Operating Leases, Rent Expense, Net, Total		$ 456,000
Minimum annual rental payments	19,000
Lease Expiration Date	Mar. 31, 2017
Yaphank [Member] | Commitments [Member]
Commitments And Contingencies [Line Items]
Lease Expiration Date		Jun. 30, 2016
Area of Land		12,000
Operating Leases, Rent Expense		13,000
Las Vegas [Member] | Commitments [Member]
Commitments And Contingencies [Line Items]
Lease Expiration Date			Apr. 30, 2016
Area of Land			4,500
Operating Leases, Rent Expense			4,270
East Brunswick [Member] | Commitments [Member]
Commitments And Contingencies [Line Items]
Lease Expiration Date		Sep. 30, 2017
Area of Land		15,000
Operating Leases, Rent Expense		$ 11,655