Consolidated Balance Sheets (Current Period Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 22,485	$ 23,126
Trade accounts receivable, net of allowance for doubtful accounts of $146 and $146, respectively	6,457	5,034
Inventories	4,165	3,769
Deferred tax assets	684	529
Prepaid expenses and other current assets	414	473
Total current assets	34,205	32,931
Property and equipment:
Machinery and equipment	4,379	4,322
Leasehold improvements	591	593
Gross property and equipment	4,970	4,915
Less: accumulated depreciation	(3,736)	(3,647)
Net property and equipment	1,234	1,268
Deferred tax assets	737	884
Goodwill	1,706	1,706
Intangible assets, net	1,320	1,393
Restricted certificates of deposit	350	350
Other assets	193	206
Total assets	39,745	38,738
Current liabilities:
Accounts payable	1,908	1,234
Accrued wages and benefits	1,330	1,528
Accrued rent	596	615
Accrued professional fees	530	390
Accrued sales commissions	368	328
Domestic and foreign income taxes payable	139	22
Other current liabilities	367	253
Total current liabilities	5,238	4,370
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; 10,595,755 and 10,595,755 shares issued, respectively	106	106
Addtional paid-in capital	26,351	26,321
Retained earnings	7,590	7,152
Accumulated other comprehensive earnings	664	993
Treasury stock, at cost; 33,077 and 33,077 shares, respectively	(204)	(204)
Total stockholders' equity	34,507	34,368
Total liabilities and stockholders' equity	$ 39,745	$ 38,738