Summary of Significant Accounting Policies (Tables)

6 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Schedule of supplemental cash flow information

Supplemental cash information and non-cash activities related to operating leases are as follows (in thousands):

	Six Months Ended
	March 31, 2020
Operating cash outflows from operating leases	$	629
Operating lease assets obtained in exchange for new lease liabilities	$	10,791

Schedule of maturities of operating lease liabilities

	Amount
2020	$	1,832
2021		1,817
2022		1,835
2023		1,770
2024		1,708
Thereafter		13,238
Total lease payments		22,200
Less imputed interest		(6,927)
Total	$	15,273

schedule of future minimum lease payments

	Amount
2020	$	988
2021		839
2022		824
2023		853
2024		655
Thereafter		1,350
Total lease payments	$	5,509

Schedule of weighted-average remaining lease term and discount rate

	March 31, 2020
Weighted average remaining lease term (years)	14.7
Weighted average discount rate	6.1	%

Revenue by Major Product Category

	For the three months ended March 31,								For the six months ended March 31,
			% of				% of				% of				% of
(in thousands)	2020		Revenue		2019		Revenue		2020		Revenue		2019		Revenue
Navigation and Inertial Sensing	$	8,842	37	%		4,094	19	%	$	19,109	39	%		6,553	14	%
Defense Optoelectronics		4,171	18	%		2,779	13	%		7,608	15	%		4,460	10	%
CA TV Lasers and Transmitters		8,782	37	%		10,762	49	%		18,165	37	%		25,534	56	%
Chip Devices		1,035	4	%		3,501	16	%		2,590	5	%		7,716	17	%
Other		1,020	4	%		609	3	%		1,860	4	%		1,483	3	%
Total revenue	$	23,850	100	%	$	21,745	100	%	$	49,332	100	%	$	45,746	100	%