Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 8,717	$ 7,736
Short-term investment securities	21,570	22,254
Accounts receivable, net of allowances of $135 and $132 at March 31, 2023 and December 31, 2022, respectively	15,531	18,853
Inventories, net	17,626	18,918
Prepaid expenses and other assets	1,594	1,861
Total current assets	65,038	69,622
Property and equipment, net	9,819	10,004
Goodwill	5,946	5,935
Intangible assets, net	968	1,045
Other noncurrent assets	3,085	3,269
TOTAL ASSETS	84,856	89,875
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	3,520	4,648
Accrued liabilities	9,002	12,605
Total current liabilities	12,522	17,253
Long-term liabilities	3,431	3,624
Total liabilities	15,953	20,877
Stockholders’ equity:
Common stock, $0.001 par value, 50,000,000 shares authorized at March 31, 2023 and December 31, 2022, and 18,982,847 and 18,748,529 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	19	19
Additional paid-in capital	127,938	128,370
Accumulated deficit	(57,647)	(57,941)
Accumulated other comprehensive loss	(1,407)	(1,450)
Total stockholders’ equity	68,903	68,998
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 84,856	$ 89,875