Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Cash Flows from Operating Activities:
Net loss	$ (28,869)	$ (23,557)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,044	768
Share-based compensation	6,633	6,166
Non-cash interest expense	513	484
Cost of rental units purchased by customers	92	137
Changes in certain assets and liabilities:
Accounts receivable, net	(4,257)	(3,097)
Inventory	(2,299)	(1,870)
Net investments in sales-type leases	381	341
Prepaid commission expense	(854)	(602)
Prepaid expenses and other assets	176	(453)
Accounts payable	(2,199)	(840)
Accrued expenses	3,260	(405)
Deferred revenue	(1,260)	(531)
Net Cash Used in Operating Activities	(27,639)	(23,459)	$ (28,000)
Cash Flows from Investing Activities:
Purchases of property and equipment and capitalized software	(2,766)	(1,552)
Repayment (Issuance) of promissory note	10,000
Repayment (Issuance) of promissory note		(7,486)
Net Cash provided by (used in) Investing Activities	7,234	(9,038)
Cash Flows from Financing Activities:
Payments of debt issuance costs	(90)
Proceeds from exercises of stock options	52	2,403
Proceeds from the issuance of common stock		80,972
Payments of common stock offering issuance costs		(401)
Net Cash (used in) Provided by Financing Activities	(38)	82,974
Net (Decrease) Increase in Cash and Cash Equivalents	(20,443)	50,477
Cash and Cash Equivalents, Beginning of Period	94,141	48,957	48,957
Cash and Cash Equivalents, End of Period	73,698	99,434	$ 94,141
Supplemental disclosure of cash flow information:
Cash paid for interest	2,525	2,471
Transfer of Inventory to PP&E	285	235
Supplemental disclosure of non-cash investing and financing activities:
Purchases of property and equipment and capitalized software in accounts payable and accrued expenses	$ 251	398
Reduction of accounts receivable in long-term note receivable		$ 2,514