CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Total revenue	$ 20,558	$ 14,931	$ 35,843	$ 28,068
Cost of revenue:
Total cost of revenue	23,116	19,525	41,728	39,064
Gross profit (loss)	(2,558)	(4,594)	(5,885)	(10,996)
Operating expenses:
Selling, general and administrative expenses	5,026	5,617	10,120	11,191
Research and development expenses	3,412	3,510	6,784	7,115
Bad debt expense (recovery)	64	266	(418)	(623)
Total operating expenses	8,502	9,393	16,486	17,683
Loss from operations	(11,060)	(13,987)	(22,371)	(28,679)
Other income (expense):
Interest expense	(8)	(4)	(16)	(11)
Interest income	137	62	268	168
Foreign exchange losses, net	(215)	679	(281)	669
Other, net	(16)	(18)	(33)	(34)
Total other income (expense), net	(102)	719	(62)	792
Loss before income taxes	(11,162)	(13,268)	(22,433)	(27,887)
Income tax expense (benefit)	341	(2,303)	775	(5,880)
Net loss	$ (11,503)	$ (10,965)	$ (23,208)	$ (22,007)
Loss per common share:
Basic	$ (0.88)	$ (0.84)	$ (1.77)	$ (1.69)
Diluted	$ (0.88)	$ (0.84)	$ (1.77)	$ (1.69)
Weighted average common shares outstanding:
Basic	13,146,330	13,049,696	13,120,286	13,037,069
Diluted	13,146,330	13,049,696	13,120,286	13,037,069
Products
Revenue:
Total revenue	$ 14,775	$ 10,106	$ 25,072	$ 21,858
Cost of revenue:
Total cost of revenue	18,799	14,914	33,635	30,358
Rental equipment
Revenue:
Total revenue	5,783	4,825	10,771	6,210
Cost of revenue:
Total cost of revenue	$ 4,317	$ 4,611	$ 8,093	$ 8,706