Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash Flows from Operating Activities:
Net loss	$ (1,140)	$ (962)
Adjustments to reconcile net loss to net cash (used) by operating activities:
Non-cash lease expense	38	40
Depreciation and amortization	20	17
Changes in assets and liabilities:
Accounts receivable	172	(382)
Inventory	(318)	833
Prepaid purchases	(119)	(357)
Prepaid expenses and other current assets	(83)	(377)
Accounts payable and other current liabilities	976	412
Short term lease liabilities	3	(35)
Long term lease liabilities	(40)	(11)
Income taxes payable	9	3
Deferred revenue	(32)	(21)
Net cash (used) by operating activities	(514)	(840)
Cash Flows From Investing Activities:
Proceeds from sale of short-term investments	983	0
Purchases of short-term investments	0	(16,035)
Additions to property and equipment	0	(180)
Net cash provided (used) by investing activities	983	(16,215)
Cash Flows from Financing Activities:
Short term finance liability	0	1
Long term finance liability	0	6
Net cash provided by financing activities	0	7
Net increase (decrease) in cash and cash equivalents	469	(17,048)
Cash and cash equivalents at beginning of the period	1,186	19,890
Cash and cash equivalents at end of the period	1,655	2,842
Supplemental disclosure of non-cash investing and financing activities:
Right-of-use assets obtained in exchange for new finance lease liabilities	0	6
Cash paid for:
Interest	3	0
Income taxes	$ 0	$ 0