CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 7,729	$ 4,497
Accounts receivable, net	7,897	8,081
Inventories, net	4,783	5,092
Other current assets	1,185	1,047
Total current assets	21,594	18,717
PROPERTY AND EQUIPMENT:
Equipment	10,723	10,682
Furniture, fixtures & leasehold improvements	3,861	3,848
Property, Plant and Equipment, Gross	14,584	14,530
Less: accumulated depreciation	(12,513)	(12,340)
Property, Plant and Equipment, Net	2,071	2,190
OTHER ASSETS:
Goodwill	6,918	6,918
Intangibles, net	10,362	10,764
Other assets	453	202
Assets	41,398	38,791
CURRENT LIABILITIES:
Accounts payable	1,516	2,052
Accrued compensation	1,125	1,121
Current maturities of long term debt	364	6,171
Accrued expenses	2,826	3,686
Deferred revenue	1,155	1,171
Other liabilities	1,067	1,067
Accrued preferred stock dividend	1,441	1,260
Total current liabilities	9,494	16,528
LONG TERM LIABILITIES:
Long term debt less current maturities	6,069	0
Common stock warrant liability	500	900
Other long-term liabilities	1,266	1,089
Total liabilities	17,329	18,517
STOCKHOLDERS’ EQUITY:
Series A preferred stock, $.01 par value, 15,000,000 shares authorized, 2,586,205 shares issued and outstanding	26	26
Common stock, $.01 par value, 150,000,000 shares authorized, 88,245,725 and 71,645,725 shares issued and outstanding, respectively	887	721
Additional paid-in capital	178,450	170,881
Accumulated other comprehensive income	262	435
Accumulated deficit	(155,556)	(151,789)
Total stockholders’ equity	24,069	20,274
Liabilities and equity	$ 41,398	$ 38,791