Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 9,162	$ 7,945
Trade accounts receivable (net of allowance for doubtful accounts of $122 and $84 at June 30, 2014 and December 31, 2013, respectively)	6,255	2,844
Inventories, net	10,284	11,575
Deferred tax assets	3,241	3,836
Prepaid expenses and other current assets	1,778	1,920
Total current assets	30,720	28,120
Property, plant and equipment, net	1,152	1,045
Deferred tax assets, net	3,165	3,072
Capitalized software, net	1,084	1,478
Other assets	286	308
Total assets	36,407	34,023
Current liabilities:
Accounts payable	1,712	950
Accrued compensation and related taxes	1,022	779
Accrued warranty expense	320	292
Accrued other expenses and other current liabilities	146	154
Deferred revenue	255	281
Total current liabilities	3,455	2,456
Deferred revenue	234	147
Total liabilities	3,689	2,603
Commitments and contingencies	0	0
Stockholders' equity:
Preferred stock; $1.00 par value; 1,000,000 authorized shares none issued or outstanding.	0	0
Common stock; $.60 par value; 20,000,000 authorized shares:13,653,087 and 13,588,804 issued and outstanding shares at June 30, 2014 and December 31, 2013, respectively	8,192	8,153
Additional paid-in capital	24,784	24,672
Accumulated deficit	(258)	(1,405)
Total stockholders' equity	32,718	31,420
Total liabilities and stockholders' equity	$ 36,407	$ 34,023