Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 3,471	$ 2,693
Trade accounts receivable (net of allowance for doubtful accounts of $43 and $44 at March 31, 2012 and December 31, 2011, respectively)	2,119	4,155
Inventories, net	12,533	12,148
Deferred tax assets	3,458	3,458
Prepaid expenses and other current assets	553	526
Total current assets	22,134	22,980
Property, plant and equipment, net	1,081	1,158
Deferred tax assets, net	4,991	4,712
Capitalized software, net	2,557	2,778
Other assets	210	219
Total assets	30,973	31,847
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,396	1,756
Accrued compensation and related taxes	913	807
Accrued warranty expense	255	247
Accrued other expenses and other current liabilities	55	318
Deferred revenue	384	385
Total current liabilities	3,003	3,513
Deferred revenue	267	265
Long-term debt	0	0
Total liabilities	3,270	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: 13,542,982 and 13,519,323 issued and outstanding shares at March 31, 2012 and December 31, 2011, respectively	8,125	8,111
Additional paid-in capital	24,591	24,570
Accumulated deficit	(5,013)	(4,612)
Total stockholders' equity	27,703	28,069
Total liabilities and stockholders' equity	$ 30,973	$ 31,847