Selected Balance Sheet Data (Tables)

12 Months Ended

Sep. 30, 2016

Selected Balance Sheet Data [Abstract]

Schedule of Selected Balance Sheet Data

(in thousands)

	As of September 30,
	2016		2015
Accounts receivable, net:
Accounts receivable	$	30,885	$	29,890
Less allowance for doubtful accounts	209		285
Less reserve for future returns and pricing adjustments	1,991		1,817
Total accounts receivable, net	$	28,685	$	27,788
Inventories:
Raw materials	$	21,116	$	26,037
Work in process	802		598
Finished goods	4,358		5,242
Total inventories	$	26,276	$	31,877
Property, equipment and improvements, net:
Land	$	1,800	$	1,800
Buildings	10,522		10,522
Improvements	3,239		3,328
Equipment	15,778		15,691
Purchased software	3,377		3,458
Furniture and fixtures	2,803		2,720
Total property, equipment and improvements, gross	37,519		37,519
Less accumulated depreciation and amortization	23,478		23,180
Total property, equipment and improvements, net	$	14,041	$	14,339