CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 6,690,000	$ 10,091,000
Accounts receivable, net	2,263,000	1,178,000
Inventories	2,976,000	2,112,000
Prepaid expenses and other current assets	505,000	321,000
Total current assets	12,434,000	13,702,000
Property, plant and equipment, net	309,000	184,000
Intangible assets, net	64,000	76,000
Goodwill	4,856,000	650,000
Right-of-use assets	224,000	172,000
Deferred tax assets	135,000	134,000
Other assets	73,000	65,000
Total assets	18,095,000	14,983,000
Current liabilities
Accounts payable	2,969,000	273,000
Accrued liabilities	530,000	568,000
Lease liabilities, current	144,000	131,000
Accrued income taxes	630,000	117,000
Total current liabilities	4,273,000	1,089,000
Long-term liabilities
Lease liabilities, long term	83,000	46,000
Total long-term liabilities	83,000	46,000
Total liabilities	4,356,000	1,135,000
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.01 par value: 1,000 shares authorized, 200 shares of Series A Convertible Preferred Stock issued and outstanding at both March 31, 2023 and December 31, 2022 ($5.0 million liquidation preference)	2,000	2,000
Common stock, $0.001 par value: 30,000 shares authorized, 6,610 shares issued and outstanding at both March 31, 2023 and December 31, 2022	7,000	7,000
Additional paid-in-capital	62,617,000	62,617,000
Accumulated other comprehensive income (loss)	84,000	(98,000)
Accumulated deficit	(48,971,000)	(48,680,000)
Total stockholders' equity	13,739,000	13,848,000
Total liabilities and stockholders' equity	$ 18,095,000	$ 14,983,000