CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash Flows From Operating Activities:
Net Loss	$ (5,314)	$ (480)
Adjustments To Reconcile Net Loss To Net Cash (Used In) Provided By Operating Activities:
Depreciation and Amortization	2,192	2,180
Stock-based Compensation	1,816	1,292
Write-off of Inventory	178	0
Change in Inventory Reserves	(425)	425
Non-cash Lease Expense from Right of Use Assets	2,141	1,960
Amortization of Debt Financing Costs and Accretion of Debt Discount and Premium	354	426
Loss on Disposal of Assets	57	0
Realized Gain on Sale of Investments	(267)	(74)
Gain on Early Termination of Lease Liability	(24)	0
Provision for Credit Losses	246	0
Changes in Assets and Liabilities:
Accounts Receivable	(98)	2,610
Inventory	2,779	(332)
Prepaid and Other Assets	392	374
Accounts Payable	(870)	(1,647)
Lease Liabilities	(1,662)	(1,452)
Accrued and Other Liabilities	(1,679)	(1,034)
Deferred License Revenue	(475)	(46)
Changes in Operating Assets and Liabilities	(1,613)	(1,527)
Net Cash (Used In) Provided by Operating Activities	(659)	4,202
Cash Flows From Investing Activities:
Purchases of Investments Available-for-Sale	(24,202)	(5,858)
Proceeds from Sales of Investments Available-for-Sale	16,200	2,003
Purchases of Equipment	(542)	(1,011)
Net Cash Used In Investing Activities	(8,544)	(4,866)
Cash Flows From Financing Activities:
Payments on Insurance Financing Note Payable	(664)	(646)
Payments on Finance Lease Liabilities	(529)	(558)
Proceeds from Issuance of Common Stock	7,816	10,181
Deferred Consideration Paid in Connection with Evoqua Asset Acquisition	(2,371)	(1,629)
Net Cash Provided By Financing Activities	4,252	7,348
Effect of Exchange Rate Changes on Cash and Cash Equivalents	0	(5)
Net (Decrease) Increase in Cash and Cash Equivalents	(4,951)	6,679
Cash and Cash Equivalents at Beginning of Year	15,662	8,983
Cash and Cash Equivalents at End of Year	10,711	15,662
Supplemental Disclosure of Cash Flow Information:
Cash Paid for Interest	772	847
Supplemental Disclosure of Noncash Investing and Financing Activities:
Issuance of Warrant in Connection with the Third Amendment as Debt Issuance Costs	0	247
Right of Use Assets - Operating Obtained in Exchange for Lease Liabilities - Operating	1,006	2,012
De-recognition of Lease Liability - Finance and Right of Use Asset - Finance Upon Early Termination	228	0
Change in Unrealized Gain on Investments Available-for-Sale	77	60
Increase in Prepaid Assets from Insurance Financing Note Payable	$ 660	$ 670