CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Products	$ 26,722	$ 9,083
Revenue, Product and Service [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember
Rental	$ 1,738	$ 8,622
Total revenue	28,460	17,705
Cost of revenue:
Products	$ 16,830	$ 9,903
Revenue, Product and Service [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember
Rental	$ 4,905	$ 5,305
Total cost of revenue	21,735	15,208
Gross profit	6,725	2,497
Operating expenses:
Selling, general and administrative	5,354	5,997
Research and development	3,520	4,296
Change in estimated fair value of contingent consideration	(697)
Bad debt expense	7	27
Total operating expenses	8,184	10,320
Loss from operations	(1,459)	(7,823)
Other income (expense):
Interest expense		(12)
Interest income	321	134
Foreign exchange gains (losses), net	149	(132)
Other, net	(3)	(29)
Total other income (loss), net	467	(39)
Loss before income taxes	(992)	(7,862)
Income tax expense	58	1,420
Net loss	$ (1,050)	$ (9,282)
Loss per common share:
Basic	$ (0.08)	$ (0.69)
Diluted	$ (0.08)	$ (0.69)
Weighted average common shares outstanding:
Basic	13,571,510	13,454,254
Diluted	13,571,510	13,454,254