CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 4,877	$ 2,503
Accounts receivable, net	7,404	10,585
Inventories	9,521	9,707
Prepaid income taxes	210	0
Other current assets	674	372
Total current assets	22,686	23,167
Fixed assets, net of accumulated depreciation of $18,991 and $18,336, respectively	2,262	2,241
Goodwill	2,621	2,621
Deferred tax assets	3,484	3,432
Intangible assets, net of accumulated amortization of $3,024, and $2,779, respectively	386	545
Other assets	35	36
Total noncurrent assets	8,788	8,875
Total assets	31,474	32,042
Current liabilities:
Accounts payable	3,421	4,894
Accrued liabilities	2,380	2,394
Income taxes payable	0	19
Deferred revenue	215	117
Total current liabilities	6,016	7,424
Deferred revenue, net of current portion	74	67
Deferred rent, net of current portion	190	178
Other liabilities	254	264
Total noncurrent liabilities	518	509
Total liabilities	6,534	7,933
Shareholders' equity:
Common stock, $0.01 par value, 20,000,000 shares authorized; 11,185,331 and 11,170,881 shares issued, respectively; 7,383,364 and 7,782,292 shares outstanding, respectively	112	112
Additional paid-in capital	29,996	29,701
Retained earnings	24,686	24,157
Treasury stock, 3,851,967 and 3,388,589 shares, at cost	(102)	(109)
Treasury stock, at cost, 3,801,967 and 3,388,589 shares, respectively	(29,752)	(29,752)
Total shareholders' equity	24,940	24,109
Total liabilities and shareholders' equity	$ 31,474	$ 32,042