Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net (loss) income	$ (3,318,000)	$ 1,590,000
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	286,000	227,000
Amortization of right-of-use financing leases	63,000	205,000
Amortization of right-of-use operating leases	361,000	340,000
Change in allowance for credit losses	53,000	44,000
Stock-based compensation	321,000	962,000
Other		(13,000)
Changes in current operating assets and liabilities:
Accounts receivable	2,833,000	3,774,000
Inventories	(5,078,000)	(295,000)
Prepaid expenses and other assets	(422,000)	224,000
Income taxes	(5,000)	(4,000)
Accounts payable, accrued liabilities and other liabilities	(110,000)	(449,000)
Deferred revenue	4,011,000	(5,896,000)
Operating lease liabilities	(374,000)	(343,000)
Net cash (used in)/ provided by operating activities	(1,379,000)	366,000
Investing activities
Purchases of property and equipment	(614,000)	(810,000)
Net cash used in investing activities	(614,000)	(810,000)
Financing activities
Net proceeds from issuance of common stock	4,986,000
Principal repayments of financing leases	(63,000)	(228,000)
Net cash provided by/ (used in) financing activities	4,923,000	(228,000)
Increase (decrease) in cash	2,930,000	(672,000)
Cash, beginning of period	3,582	10,296
Cash, end of period	6,512,000	9,624,000
Supplemental cash flow information:
Interest paid	18,000
Non-cash investing and financing activities:
Surrender and retirement of common stock	$ 224,000