Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 2,576	$ 3,564
Marketable securities		2,639
Accounts receivable, net of allowance for doubtful accounts of $870 and $1,173,	4,986	5,252
Inventories	3,569	3,589
Prepaid expenses and other current assets	1,231	1,414
Total current assets	12,362	16,458
Property and equipment:
Furniture and fixtures	620	620
Leasehold improvements	522	511
Equipment	4,116	3,988
Property and equipment, gross	5,258	5,119
Accumulated depreciation	4,352	4,094
Property and equipment, net	906	1,025
Deferred income taxes	139	139
Intangible assets, net	5,763	6,463
Other assets	300	300
TOTAL ASSETS	19,470	24,385
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	3,210	2,409
Accrued compensation	707	1,202
Warranty and other current liabilities	1,640	1,959
Total current liabilities	5,557	5,570
Deferred income taxes	180	175
Other long-term liabilities	107	126
Shareholders' equity:
Preferred stock, $.01 par value; 5,000,000 shares authorized, none issued or outstanding
Common stock, $.01 par value; 20,000,000 shares authorized, 4,984,151 and 4,974,847 outstanding, respectively	49	49
Additional paid-in capital	23,463	23,276
Accumulated other comprehensive income	819	604
Retained earnings	(10,705)	(5,415)
Total shareholders' equity	13,626	18,514
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 19,470	$ 24,385