CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 7,960	$ 10,359
Accounts receivable, net	5,741	3,377
Note receivable	0	100
Inventories	8,734	11,286
Prepaid income taxes	2,499	2,409
Other current assets	864	644
Total current assets	25,798	28,175
Fixed assets, net of accumulated depreciation of $20,124 and $19,979, respectively	1,843	1,950
Note receivable, net of current portion	0	1,584
Right-of-use asset	2,952	3,618
Goodwill	2,621	2,621
Deferred tax assets	4,147	2,939
Intangible assets, net of accumulated amortization of $4,056 and $4,005, respectively	481	583
Other assets	573	777
Total noncurrent assets	12,617	14,072
Total assets	38,415	42,247
Current liabilities:
Accounts payable	2,780	1,691
Accrued liabilities	2,466	3,665
Lease liability	809	837
Deferred revenue	742	504
Total current liabilities	6,797	6,697
Long-term debt	2,173	2,173
Deferred revenue, net of current portion	232	111
Lease liability, net of current portion	2,167	2,864
Other liabilities	173	166
Total noncurrent liabilities	4,745	5,314
Total liabilities	11,542	12,011
Shareholders' equity:
Common stock, $0.01 par value, 20,000,000 shares authorized; 13,010,383 and 12,976,227 shares issued, respectively; 8,965,541 and 8,931,385 shares outstanding, respectively	130	130
Additional paid-in capital	43,408	42,536
Retained earnings	15,398	19,718
Accumulated other comprehensive income (loss), net of tax	47	(38)
Treasury stock, at cost, 4,044,842 shares	(32,110)	(32,110)
Total shareholders' equity	26,873	30,236
Total liabilities and shareholders' equity	$ 38,415	$ 42,247