Segment Information (Detail) - The Company’s sales by operating segment - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 103,367	$ 89,306
% of total	100.00%	100.00%
Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 71,115	$ 58,433
% of total	69.00%	66.00%
Europe [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 27,960	$ 27,848
% of total	27.00%	31.00%
Asia [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 4,292	$ 3,025
% of total	4.00%	3.00%
Systems Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 16,342	$ 13,948
% of total	16.00%	16.00%
Systems Segment [Member] | Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 11,417	$ 10,774
Systems Segment [Member] | Europe [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	1,584	1,135
Systems Segment [Member] | Asia [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	3,341	2,039
Service And System Integration [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 87,025	$ 75,358
% of total	84.00%	84.00%
Service And System Integration [Member] | Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 59,698	$ 47,659
Service And System Integration [Member] | Europe [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	26,376	26,713
Service And System Integration [Member] | Asia [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 951	$ 986