Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 25,710	$ 23,126
Trade accounts receivable, net of allowance for doubtful accounts of $146 and $146, respectively	4,395	5,034
Inventories	3,520	3,769
Deferred tax assets	559	529
Prepaid expenses and other current assets	639	473
Total current assets	34,823	32,931
Property and equipment:
Machinery and equipment	4,377	4,322
Leasehold improvements	603	593
Gross property and equipment	4,980	4,915
Less: accumulated depreciation	(3,868)	(3,647)
Net property and equipment	1,112	1,268
Deferred tax assets	686	884
Goodwill	1,706	1,706
Intangible assets, net	1,104	1,393
Restricted certificates of deposit	350	350
Other assets	203	206
Total assets	39,984	38,738
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	909	1,234
Accrued wages and benefits	1,466	1,528
Accrued rent	657	615
Accrued professional fees	363	390
Accrued sales commissions	297	328
Other current liabilities	367	275
Total current liabilities	$ 4,059	$ 4,370
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
Common stock, $0.01 par value; 20,000,000 shares authorized; 10,549,423 and 10,595,755 shares issued, respectively	$ 105	$ 106
Addtional paid-in capital	26,286	26,321
Retained earnings	9,013	7,152
Accumulated other comprehensive earnings	725	993
Treasury stock, at cost; 33,077 and 33,077 shares, respectively	(204)	(204)
Total stockholders' equity	35,925	34,368
Total liabilities and stockholders' equity	$ 39,984	$ 38,738