Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 13,957	$ 6,895
Trade accounts receivable, net of allowance for doubtful accounts of $195 and $150, respectively	6,189	6,244
Inventories	3,896	3,489
Deferred tax assets	453
Prepaid expenses and other current assets	302	430
Total current assets	24,797	17,058
Property and equipment:
Machinery and equipment	3,585	3,534
Leasehold improvements	514	765
Gross property and equipment	4,099	4,299
Less: accumulated depreciation	(2,965)	(3,581)
Net property and equipment	1,134	718
Deferred tax assets	2,028
Goodwill	1,656	1,656
Intangible assets, net	942	1,077
Restricted certificates of deposit	500	700
Other assets	180	199
Total assets	31,237	21,408
Current liabilities:
Accounts payable	1,031	1,672
Accrued wages and benefits	1,795	1,779
Accrued sales commissions	493	522
Accrued rent	407	83
Accrued professional fees	451	373
Accrued warranty	214	274
Customer deposits	425	84
Other current liabilities	222	478
Total current liabilities	5,038	5,265
Deferred rent, net of current portion		39
Total liabilities	5,038	5,304
Commitments and Contingencies (Notes 10, 11, 13 and 16 )	0	0
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	26,035	25,973
Accumulated deficit	(686)	(10,549)
Accumulated other comprehensive earnings	1,217	1,311
Treasury stock, at cost; 76,328 and 119,029 shares, respectively	(472)	(736)
Total stockholders' equity	26,199	16,104
Total liabilities and stockholders' equity	$ 31,237	$ 21,408