CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 947	$ 4,203
Accounts receivable, net	4,918	6,418
Note receivable	100	1,017
Inventories	12,503	12,099
Prepaid income taxes	88	180
Other current assets	1,213	998
Total current assets	19,769	24,915
Fixed assets, net of accumulated depreciation of $19,468 and $19,010, respectively	2,339	2,244
Note receivable, net of current portion	1,566	0
Right-of-use asset	3,794	2,855
Goodwill	2,621	2,621
Deferred tax assets	4,574	2,565
Intangible assets, net of accumulated amortization of $3,953 and $3,771, respectively	634	817
Other assets	192	44
Total noncurrent assets	15,720	11,146
Total assets	35,489	36,061
Current liabilities:
Accounts payable	2,458	2,960
Accrued liabilities	3,053	3,041
Lease liability	857	945
Deferred revenue	479	700
Total current liabilities	6,847	7,646
Long-term debt	2,173	0
Deferred revenue, net of current portion	120	219
Lease liability, net of current portion	3,053	2,104
Other liabilities	128	166
Total noncurrent liabilities	5,474	2,489
Total liabilities	12,321	10,135
Shareholders' equity:
Common stock, $0.01 par value, 20,000,000 shares authorized; 11,593,727 and 11,515,090 shares issued, respectively; 7,548,885 and 7,470,248 shares outstanding, respectively	116	115
Additional paid-in capital	33,560	32,604
Retained earnings	21,636	25,348
Accumulated other comprehensive income (loss), net of tax	(34)	(31)
Treasury stock, at cost, 4,044,842 shares	(32,110)	(32,110)
Total shareholders' equity	23,168	25,926
Total liabilities and shareholders' equity	$ 35,489	$ 36,061