CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Cash flows from operating activities:
Net loss	$ (326)	$ (766)
Adjustments to reconcile net loss to net cash provided by operating activities:
Stock-based compensation expense	3,500	3,337
Depreciation and amortization of capital expenditures	1,063	850
Amortization of intangible assets	741	326
Amortization of operating lease right-of-use assets	647	717
Other	(2)	15
Changes in operating assets and liabilities:
Accounts receivable, net	(1,603)	1,688
Inventories and deferred inventory costs	965	(493)
Prepaid expenses and other assets	(755)	(2,681)
Accounts payable, accrued expenses and other liabilities	(2,352)	(1,951)
Deferred revenue	(594)	(223)
Net cash provided by operating activities	1,284	819
Cash flows from investing activities:
Proceeds from maturities and sales of short-term investments	1,750	4,800
Purchases of short-term investments		(3,380)
Capital expenditures	(1,374)	(1,459)
Business acquisition, working capital adjustments	300	0
Net cash provided by (used in) investing activities	676	(39)
Cash flows from financing activities:
Proceeds from issuance of common stock	1,724	1,554
Net cash provided by financing activities	1,293	1,206
Net increase in cash and cash equivalents	3,253	1,986
Cash and cash equivalents at beginning of period	24,137	19,667
Cash and cash equivalents at end of period	27,390	21,653
Restricted Stock Units (RSUs)
Cash flows from financing activities:
Shares repurchased for tax withholdings on vesting of restricted stock units ("RSU")	$ (431)	$ (348)