Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 6,232	$ 2,693
Trade accounts receivable (net of allowance for doubtful accounts of $39 and $44 at September 30, 2012 and December 31, 2011, respectively)	4,609	4,155
Inventories, net	12,316	12,148
Deferred tax assets	2,520	3,458
Prepaid expenses and other current assets	937	526
Total current assets	26,614	22,980
Property, plant and equipment, net	1,193	1,158
Deferred tax assets, net	4,712	4,712
Capitalized software, net	2,277	2,778
Other assets	338	219
Total assets	35,134	31,847
Current liabilities:
Accounts payable	2,551	1,756
Accrued compensation and related taxes	1,546	807
Accrued warranty expense	223	247
Accrued other expenses and other current liabilities	231	318
Note payable	35	0
Deferred revenue	593	385
Total current liabilities	5,179	3,513
Deferred revenue	112	265
Long-term debt	0	0
Total liabilities	5,291	3,778
Commitments and contingencies
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: 13,545,482 and 13,519,323 issued and outstanding shares at September 30, 2012 and December 31, 2011, respectively	8,127	8,111
Additional paid-in capital	24,599	24,570
Accumulated deficit	(2,883)	(4,612)
Total stockholders' equity	29,843	28,069
Total liabilities and stockholders' equity	$ 35,134	$ 31,847