Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Activities:
Net loss	$ (2,029)	$ (1,953)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	265	201
Amortization	80	80
Non cash amortization of right-of-use asset and liability	(51)	(52)
Provision for excess and obsolete inventories	91	0
Share based compensation expense	281	315
Gain on disposal of property and equipment	0	(10)
Changes in assets and liabilities:
Accounts receivable	544	(842)
Unbilled revenue	269	(562)
Income tax receivable\payable	0	35
Inventories	179	(626)
Prepaid expenses and other current assets	59	(112)
Accounts payable	(232)	56
Accrued expenses and other liabilities	(384)	(250)
Deferred revenue	39	13
Net cash used in operating activities	(889)	(3,707)
Investing Activities:
Proceeds from promissory note receivable	0	1,505
Purchases of property and equipment	(116)	(74)
Disposals of property and equipment	0	26
Net cash (used in) provided by investing activities	(116)	1,457
Financing Activities:
Payments on financing lease obligations	(155)	(86)
Payments on notes payable	0	(1,249)
Proceeds from sale of common stock	636	878
Net cash provided by (used in) financing activities	481	(457)
Net decrease in cash, cash equivalents and restricted cash	(524)	(2,707)
Cash, cash equivalents and restricted cash at beginning of period	2,942	8,373
Cash, cash equivalents and restricted cash at end of period	$ 2,418	$ 5,666