Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash	$ 10,296	$ 9,924
Restricted cash		1,775
Notes receivable and accrued interest		5,778
Accounts receivable, net	11,139	2,429
Inventories	8,748	4,160
Prepaid expenses and other current assets	2,853	1,069
Total current assets	33,036	25,135
Property and equipment, net	1,800	516
Operating lease right-of-use assets	1,450	1,672
Financing lease right-of-use assets	727	565
Other assets	162	39
Total assets	37,175	27,927
Current liabilities
Accounts payable and accrued liabilities	7,239	3,352
Current portion of operating lease liabilities	703	605
Current portion of financing lease liabilities	355	202
Deferred revenue	10,665	2,423
Total current liabilities	18,962	6,582
Operating lease liabilities, non-current portion	797	1,108
Financing lease liabilities, non-current portion	418	411
Other long-term liabilities	65	274
Total liabilities	20,242	8,375
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred stock, $0.001 par value, 5,000,000 shares authorized; none issued
Common stock, $0.001 par value, 30,000,000 shares authorized; 9,644,545 and 9,640,545 shares issued and outstanding on December 31, 2022 and 2021, respectively	10	10
Additional paid-in capital	32,859	31,840
Accumulated other comprehensive income	14	14
Accumulated deficit	(15,950)	(12,312)
Total stockholders’ equity	16,933	19,552
Total liabilities and stockholders’ equity	$ 37,175	$ 27,927

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.