CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (4,290)	$ (5,853)
Adjustments to reconcile net loss to net cash flows provided by (used in) operating activities:
Depreciation and amortization	1,199	1,225
Amortization of operating lease right-of-use asset	217	209
Amortization of finance lease right-of-use asset	97	83
Amortization of deferred financing costs, debt discounts and debt premiums	3	3
Gain on dissolution of joint venture		(65)
Gain on write-off of liabilities		(1,720)
Stock-based compensation	1,491	1,558
Value of stock issued in payment of services	386	177
Provision for credit losses	64	218
Derecognition of finance lease right-of-use asset	2
Changes in operating assets and liabilities:
Accounts receivable	438	(483)
Inventories	(340)	324
Other assets	303	451
Accounts payable	(10)	(169)
Operating lease liabilities	(218)	(206)
Deferred revenue	122	(9)
Accrued expenses	975	698
Net cash provided by (used in) operating activities	439	(3,559)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(223)	(126)
Net cash used in investing activities	(223)	(126)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on finance lease obligations	(92)	(80)
Deposits on finance lease right-of-use assets	(28)
Issuance of common stock, net of issuance costs	78	2,245
Proceeds from debt	250
Principal payments on long-term debt	(537)	(423)
Net cash flows (used in) provided by financing activities	(329)	1,742
NET CHANGE IN CASH	(113)	(1,943)
CASH AT BEGINNING OF PERIOD	1,502	3,445
CASH AT END OF PERIOD	1,389	1,502
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid during the period for interest	85	42
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY
Purchases of equipment financed through accounts payable	6	11
Prepaid insurance financed with loan	317	372
Operating lease right-of-use assets obtained in exchange for operating lease obligations	0	$ 58
Finance lease right-of-use assets obtained in exchange for finance lease obligations	$ 414