Segment, Customer and Geographical Reporting - Geographic Financial Information (Details) - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 43,701,000	$ 40,681,000
% of Total	100.00%	100.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 34,421,000	$ 30,777,000
% of Total	79.00%	76.00%
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 3,206,000	$ 3,017,000
% of Total	7.00%	7.00%
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 5,167,000	$ 6,486,000
% of Total	12.00%	16.00%
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 907,000	$ 401,000
% of Total	2.00%	1.00%