Rental Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Rental Equipment [Abstract]
Rental equipment, primarily wireless recording equipment	$ 68,959	$ 75,359
Accumulated depreciation and impairment	(37,986)	(29,323)
Rental equipment, net	$ 30,973	$ 46,036