Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 16,032	$ 15,576
Trade accounts receivable, net of allowance for doubtful accounts of $147 and $147, respectively	7,233	5,501
Inventories	3,360	3,135
Deferred tax assets	925	1,004
Prepaid expenses and other current assets	246	363
Total current assets	27,796	25,579
Machinery and equipment	3,919	3,948
Leasehold improvements	594	591
Gross property and equipment	4,513	4,539
Less: accumulated depreciation	(3,376)	(3,289)
Net property and equipment	1,137	1,250
Deferred tax assets	943	1,034
Goodwill	1,706	1,706
Intangible assets, net	1,962	2,194
Restricted certificates of deposit	450	450
Other assets	184	186
Total assets	34,178	32,399
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,328	1,041
Accrued wages and benefits	1,321	1,562
Accrued sales commissions	542	348
Accrued rent	558	529
Accrued professional fees	386	385
Deferred revenue and customer deposits	198	255
Domestic and foreign income taxes payable	338	83
Other current liabilities	336	376
Total current liabilities	5,007	4,579
Commitments and Contingencies
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; 10,505,755 and 10,453,255 shares issued, respectively	105	105
Addtional paid-in capital	26,118	26,030
Retained earnings	1,931	636
Accumulated other comprehensive earnings	1,221	1,253
Treasury stock, at cost; 33,077 and 33,077 shares, respectively	(204)	(204)
Total stockholders' equity	29,171	27,820
Total liabilities and stockholders' equity	34,178	32,399
Common Stock [Member]
LIABILITIES AND STOCKHOLDERS' EQUITY
Total stockholders' equity	$ 105	$ 105