Consolidated Balance Sheets (Except Share Data) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 12,064	$ 6,895
Trade accounts receivable, net of allowance for doubtful accounts of $147 and $150, respectively	6,816	6,244
Inventories	4,674	3,489
Deferred tax assets	483
Prepaid expenses and other current assets	367	430
Total current assets	24,404	17,058
Property and equipment:
Machinery and equipment	3,551	3,534
Leasehold improvements	513	765
Gross property and equipment	4,064	4,299
Less: accumulated depreciation	(2,966)	(3,581)
Net property and equipment	1,098	718
Deferred tax assets	2,422
Goodwill	1,656	1,656
Intangible assets, net	976	1,077
Restricted certificates of deposit	500	700
Other assets	171	199
Total assets	31,227	21,408
Current liabilities:
Accounts payable	1,733	1,672
Accrued wages and benefits	1,715	1,779
Accrued sales commissions	553	522
Accrued rent	403	83
Accrued professional fees	374	373
Accrued warranty	231	274
Customer deposits	419	84
Other current liabilities	358	478
Total current liabilities	5,786	5,265
Deferred rent, net of current portion		39
Total liabilities	5,786	5,304
Commitments and Contingencies (Notes 9 and 11)
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 and 10,464,505 shares issued, respectively	105	105
Addtional paid-in capital	26,008	25,973
Accumulated deficit	(1,455)	(10,549)
Accumulated other comprehensive earnings	1,255	1,311
Treasury stock, at cost; 76,328 and 119,029 shares, respectively	(472)	(736)
Total stockholders' equity	25,441	16,104
Total liabilities and stockholders' equity	$ 31,227	$ 21,408