Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 32,772	$ 27,379
Short-term investments	16,316	14,942
Accounts receivable	50	336
Inventory	13,760	13,522
Prepaid expenses and other current assets	662	895
Total current assets	63,560	57,074
Property and equipment, net	675	713
Deferred tax assets	1,433	584
Right-of-use assets	806	1,009
Other assets	1,174	2,558
Total assets	67,648	61,938
Current liabilities:
Accounts payable	1,837	1,838
Accrued liabilities	2,952	1,896
Customer deposits	679	775
Lease liabilities	478	525
Dividend payable	4,527	4,504
Total current liabilities	10,473	9,538
Other liabilities	461	583
Total liabilities	10,934	10,121
Commitments and contingencies (Note 5)
Stockholders’ equity
Preferred stock, par value $0.0001 per share - 5,000,000 shares authorized as of June 30, 2022 and December 31, 2021; nil shares issued and outstanding as of June 30, 2022 and December 31, 2021
Common stock, par value $0.0001 per share - 75,000,000 shares authorized as of June 30, 2022 and December 31, 2021; 18,108,593 and 17,928,748 shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively	2	2
Additional paid-in capital	25,274	24,251
Accumulated other comprehensive loss	(104)	(26)
Retained earnings	31,542	27,590
Total stockholders’ equity	56,714	51,817
Total liabilities and stockholders’ equity	$ 67,648	$ 61,938