Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 3,471,000	$ 3,548,000
Accounts receivable, net of allowances	1,735,000	3,168,000
Note receivable	3,486,000	0
Inventories	444,000	330,000
Prepaid expenses and other current assets	51,000	91,000
Total current assets	9,187,000	7,137,000
Equipment and leasehold improvements, net	1,664,000	1,742,000
Other non-current assets	102,000	95,000
Operating lease right-of-use assets, net	937,000	992,000
Financing lease right-of-use asset, net	418,000	451,000
Investment in South Korean joint venture	23,000	14,000
Total assets	12,499,000	10,513,000
Current liabilities:
Accounts payable and accrued expenses	1,430,000	946,000
Debt obligations	83,000	66,000
Operating lease liabilities	105,000	105,000
Finance lease liability	88,000	88,000
Deposits	158,000	90,000
Total current liabilities	4,080,000	2,648,000
Long-term liabilities:
Operating lease liabilities, net of current	872,000	922,000
Finance lease liability, net of current	317,000	360,000
Total long-term liabilities	2,359,000	1,809,000
Total liabilities	6,439,000	4,457,000
STOCKHOLDERS’ EQUITY:
Preferred Series A, $0.00067 Par Value, 50,000,000 Shares Authorized, no Shares Issued and Outstanding, at June 30, 2025 and December 31, 2024	0	0
Common stock, $0.00067 Par Value, 550,000,000 Shares Authorized, 306,752,661 and 301,274,243 Shares Issued, at June 30, 2025 and December 31, 2024	205,000	202,000
Additional paid-in capital	160,601,000	158,332,000
Accumulated deficit	(151,848,000)	(149,500,000)
Accumulated other comprehensive loss	(203,000)	(183,000)
Total BioLargo Inc. and subsidiaries stockholders’ equity	8,755,000	8,851,000
Non-controlling interest (Notes 8, 9, 10)	(2,695,000)	(2,795,000)
Total stockholders’ equity	6,060,000	6,056,000
Total liabilities and stockholders’ equity	12,499,000	10,513,000
Entities, Excluding Partially Owned Subsidiary [Member]
Current assets:
Note receivable, net of current	86,000	0
Current liabilities:
Accounts payable and accrued expenses	1,430,000	946,000
Long-term liabilities:
Debt obligations, net of current	199,000	175,000
Partially Owned Subsidiary [Member]
Current assets:
Note receivable, net of current	82,000	82,000
Current liabilities:
Accounts payable and accrued expenses	1,183,000	867,000
Debt obligations	1,033,000	486,000
Long-term liabilities:
Debt obligations, net of current	$ 971,000	$ 352,000