Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 15,576	$ 13,957
Trade accounts receivable, net of allowance for doubtful accounts of $147 and $195, respectively	5,501	6,189
Inventories	3,135	3,896
Deferred tax assets	1,004	453
Prepaid expenses and other current assets	363	302
Total current assets	25,579	24,797
Property and equipment:
Machinery and equipment	3,948	3,585
Leasehold improvements	591	514
Gross property and equipment	4,539	4,099
Less: accumulated depreciation	(3,289)	(2,965)
Net property and equipment	1,250	1,134
Deferred tax assets	1,034	2,028
Goodwill	1,706	1,656
Intangible assets, net	2,194	942
Restricted certificates of deposit	450	500
Other assets	186	180
Total assets	32,399	31,237
Current liabilities:
Accounts payable	1,041	1,031
Accrued wages and benefits	1,562	1,795
Accrued sales commissions	348	493
Accrued rent	529	407
Accrued professional fees	385	451
Deferred revenue and customer deposits	255	425
Other current liabilities	459	436
Total current liabilities	4,579	5,038
Commitments and Contingencies (Notes 11,12,14 and16)
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; 10,453,255 and 10,463,255 shares issued, respectively	105	105
Addtional paid-in capital	26,030	26,035
Retained earnings (accumulated deficit)	636	(686)
Accumulated other comprehensive earnings	1,253	1,217
Treasury stock, at cost; 33,077 and 76,328 shares, respectively	(204)	(472)
Total stockholders' equity	27,820	26,199
Total liabilities and stockholders' equity	$ 32,399	$ 31,237