Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 11,756	$ 13,671
Short-term investments	53,014	51,788
Accounts receivable	45	40
Inventory	11,071	9,518
Prepaid expenses and other current assets	846	939
Total current assets	76,732	75,956
Property and equipment, net	409	522
Deferred tax assets	3,881	3,620
Right-of-use assets	925	1,045
Intangible assets, net	1,008	1,036
Goodwill	891	891
Long-term investments	0	500
Other assets	199	237
Total assets	84,045	83,807
Current liabilities:
Accounts payable	1,454	1,707
Accrued liabilities	3,351	2,322
Customer deposits	846	1,448
Lease liabilities	453	497
Dividend payable		4,599
Total current liabilities	6,104	10,573
Other liabilities	850	939
Total liabilities	6,954	11,512
Commitments and contingencies (Note 5)
Stockholders’ equity
Preferred stock, par value $0.0001 per share - 5,000,000 shares authorized as of March 31, 2024 and December 31, 2023; nil shares issued and outstanding as of March 31, 2024 and December 31, 2023
Common stock, par value $0.0001 per share - 75,000,000 shares authorized as of March 31, 2024 and December 31, 2023; 18,432,450 and 18,395,682 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively	2	2
Additional paid-in capital	27,894	27,477
Accumulated other comprehensive loss	22	18
Retained earnings	49,173	44,798
Total stockholders’ equity	77,091	72,295
Total liabilities and stockholders’ equity	$ 84,045	$ 83,807