Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 2,827	$ 3,867
Accounts receivable, net of allowance of $252 and $260, respectively	3,258	2,118
Inventory	3,589	2,392
Prefunded insurance premiums from financing	238	357
Prepaid expenses and other current assets	1,003	861
Total current assets	10,915	9,595
Other assets	151	174
Fixed assets, net of accumulated depreciation of $381 and $366, respectively	121	137
Total assets	11,187	9,906
Current liabilities:
Accounts payable	2,387	716
Accrued expenses	2,007	1,283
Insurance premium financing	238	357
Total current liabilities	4,632	2,356
Total liabilities	4,632	2,356
Shareholders’ equity:
Authorized — 800,000,000 issued and outstanding shares — 102,232,943 shares and 101,258,135 shares, respectively	90,475	90,273
Accumulated other comprehensive income	286	331
Accumulated deficit	(84,206)	(83,054)
Total shareholders’ equity	6,555	7,550
Total liabilities and shareholders’ equity	$ 11,187	$ 9,906