Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 10,101	$ 13,957
Trade accounts receivable, net of allowance for doubtful accounts of $147 and $195, respectively	7,942	6,189
Inventories	4,740	3,896
Deferred tax assets	473	453
Prepaid expenses and other current assets	302	302
Total current assets	23,558	24,797
Property and equipment:
Machinery and equipment	3,709	3,585
Leasehold improvements	533	514
Gross property and equipment	4,242	4,099
Less: accumulated depreciation	(3,006)	(2,965)
Net property and equipment	1,236	1,134
Deferred tax assets	2,015	2,028
Goodwill	1,835	1,656
Intangible assets, net	2,522	942
Restricted certificates of deposit	500	500
Other assets	202	180
Total assets	31,868	31,237
Current liabilities:
Accounts payable	1,941	1,031
Accrued wages and benefits	1,225	1,795
Accrued sales commissions	516	493
Accrued rent	416	407
Accrued professional fees	371	451
Accrued warranty	285	214
Customer deposits	419	425
Other current liabilities	465	222
Total current liabilities	5,638	5,038
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 20,000,000 shares authorized; 10,463,255 shares issued	105	105
Addtional paid-in capital	26,062	26,035
Accumulated deficit	(729)	(686)
Accumulated other comprehensive earnings	1,264	1,217
Treasury stock, at cost; 76,328 shares	(472)	(472)
Total stockholders' equity	26,230	26,199
Total liabilities and stockholders' equity	$ 31,868	$ 31,237