CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 6,609	$ 5,836
Marketable securities	7,971	8,295
Accounts receivable, less allowances of $313 at June 30, 2020 and $322 at December 31, 2019	14,883	16,059
Inventories	19,915	15,580
Prepaid expenses	472	559
Other current assets	1,852	1,020
Total current assets	51,702	47,349
Marketable securities, long-term	14,499	12,168
Equipment and leasehold improvements, net	3,034	3,341
Intangible assets, net	258	310
Goodwill	1,366	1,366
Right-of-use assets (operating leases)	2,780	2,111
Trade notes receivable, long-term	790	962
Deferred tax assets	4,981	4,992
Total assets	79,410	72,599
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	9,587	7,023
Advance customer payments	869	499
Accrued expenses	3,333	2,572
Current operating lease liabilities	761	688
Total current liabilities	14,550	10,782
Other liabilities	148	202
Long-term operating lease liabilities	3,607	3,141
Reserve for income taxes	150	150
Total liabilities	18,455	14,275
Commitments and contingencies
Stockholders’ equity:
Preferred stock, no par value, 5,000,000 shares authorized, none outstanding	0	0
Common stock, no par value, 25,000,000 shares authorized, 7,231,587 shares issued and outstanding at June 30, 2020 and 7,154,591 shares issued and outstanding at December 31, 2019	37,053	36,659
Accumulated other comprehensive loss	(1,646)	(1,406)
Retained earnings	25,548	23,071
Total stockholders’ equity	60,955	58,324
Total liabilities and stockholders’ equity	$ 79,410	$ 72,599