Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net (loss) income	$ (67)	$ 2,426
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	953	620
Amortization of debt issuance costs	7	0
Warranty provision	44	2
Inventory obsolescence	315	168
Share-based compensation	956	776
Realized loss on foreign currency forward contract	(48)	0
Unrealized loss on foreign currency forward contract	(28)	0
Deferred income taxes	506	742
Amortization of operating lease right of use asset	518	446
Accretion of acquisition holdback liability	34	0
Changes in operating assets and liabilities:
Accounts receivable, net	(574)	(2,722)
Inventories, net	(788)	(1,667)
Prepaid expenses and other	(636)	732
Accounts payable	1,134	2,040
Accrued and other liabilities	5,988	148
Net cash provided by operating activities	8,314	3,711
Investing Activities:
Purchases of marketable securities	(4,457)	(5,497)
Proceeds from maturities of marketable securities	4,249	3,183
Cash paid for acquisitions net of cash acquired	(15,848)	0
Capital expenditures	(181)	(111)
Net cash used in investing activities	(16,237)	(2,425)
Financing Activities:
Proceeds from exercise of stock options	170	996
Repurchase of common stock	0	(398)
Shares retained for payment of taxes in connection with settlement of restricted stock units	(141)	(41)
Payments on promissory notes	(18)	(17)
Cash paid for debt issuance costs	(38)	0
Net cash (used in) provided by financing activities	(27)	540
Effect of foreign exchange rate on cash	(18)	(9)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(7,968)	1,817
Cash, cash equivalents and restricted cash, beginning of period	23,996	19,517
Cash, cash equivalents and restricted cash, end of period	16,028	21,334
Cash and cash equivalents	14,540	20,668
Restricted cash, current portion	286	271
Long-term restricted cash	1,202	395
Total cash, cash equivalents and restricted cash shown in the consolidated statement of cash flows	16,028	21,334
Noncash investing and financing activities:
Change in unrealized loss on marketable securities	(6)	(3)
Initial measurement of operating lease right of use assets	259	5,824
Initial measurement of operating lease liabilities	259	7,815
Fair value of net assets acquired	30,980	0
Zonehaven, Inc [Member]
Noncash investing and financing activities:
Common stock issued in connection with the purchase of Zonehaven	(10,938)	0
Assets Acquisition of Amika Mobile Corporation [Member]
Noncash investing and financing activities:
Obligation to issue common stock in connection with the Amika Mobile asset purchase	$ (2,703)	$ 0