Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 23,577	$ 13,671
Short-term investments	43,928	51,788
Accounts receivable	178	40
Inventory	12,259	9,518
Prepaid expenses and other current assets	1,077	939
Total current assets	81,019	75,956
Property and equipment, net	404	522
Deferred tax assets	4,142	3,620
Right-of-use assets	739	1,045
Goodwill	891	891
Intangible assets, net	981	1,036
Long-term investments		500
Other assets	157	237
Total assets	88,333	83,807
Current liabilities:
Accounts payable	1,517	1,707
Accrued liabilities	3,316	2,322
Customer deposits	771	1,448
Lease liabilities	433	497
Dividend payable	4,626	4,599
Total current liabilities	10,663	10,573
Other liabilities	474	939
Total liabilities	11,137	11,512
Commitments and contingencies (Note 5)
Stockholders’ equity
Preferred stock, par value $0.0001 per share - 5,000,000 shares authorized as of June 30, 2024 and December 31, 2023; nil shares issued and outstanding as of June 30, 2024 and December 31, 2023
Common stock, par value $0.0001 per share - 75,000,000 shares authorized as of June 30, 2024 and December 31, 2023; 18,507,490 and 18,395,682 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	2	2
Additional paid-in capital	28,272	27,477
Accumulated other comprehensive loss	39	18
Retained earnings	48,883	44,798
Total stockholders’ equity	77,196	72,295
Total liabilities and stockholders’ equity	$ 88,333	$ 83,807