Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 4,747	$ 4,358
Trade accounts receivable, net of allowances of $35 and $35, respectively	848	838
Inventories, current	4,580	4,180
Other current assets	1,014	1,140
Total current assets	11,189	10,516
Property, plant and equipment, net	4,255	3,963
Right-of-use assets, net	95	134
Inventories, noncurrent	840	865
Other noncurrent assets	37
Total assets	16,416	15,478
Current liabilities
Accounts payable	1,366	825
Income taxes payable		59
Accrued expense	1,563	1,095
Contract liabilities	220	483
Legacy SMAP promissory notes		172
Right-of-use liabilities, current	99	138
Other current liabilities	83	245
Total current liabilities	3,331	3,017
Contract liabilities, noncurrent	73	83
Warrants	10	10
Deferred tax liabilities, net	86	80
Total liabilities	3,500	3,190
Shareholders' equity (deficit)
Common stock, $0.0001 par value; 300,000,000 shares authorized as of March 31, 2025 and December 31, 2024, respectively, and 32,956,641 and 30,526,052 shares issued and outstanding as of March 31, 2025 and December 31, 2025, respectively	3	3
Additional paid-in capital	71,975	66,911
Accumulated deficit	(59,062)	(54,626)
Total shareholders' deficit	12,916	12,288
Total liabilities and shareholders' deficit	$ 16,416	$ 15,478