CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 2,417,349	$ 3,523,948
Accounts receivable, net of allowance for doubtful accounts of $133,000 and $265,000, respectively	3,262,350	3,277,095
Inventories, net	7,577,793	6,141,179
Prepaid expenses and other current assets	1,007,985	671,192
Total current assets	14,265,477	13,613,414
Property and equipment, net	4,867,998	6,918,944
Patents and licensed technologies, net	6,121,301	6,813,528
Goodwill	19,569,200	19,569,200
Other intangible assets, net	1,493,349	1,688,352
Other assets	711,179	892,280
Total assets	47,028,504	49,495,718
Current liabilities:
Current portion of notes payable	273,370	77,796
Current portion of long-term debt	1,533,723	2,867,720
Accounts payable	5,485,006	2,801,568
Accrued compensation and related expenses	1,480,496	1,782,793
Accrued interest payable	260,291	699,025
Other accrued liabilities	2,311,187	1,765,523
Deferred revenues	772,887	496,443
Total current liabilities	12,116,960	10,490,868
Long-term liabilities:
Notes payable, net of current portion	0	13,817
Long-term debt, net of current portion	356,550	29,933
Convertible debt	21,653,149	19,344,136
Warrants related to convertible debt	2,380,295	938,623
Total liabilities	36,506,954	30,817,377
Stockholders' equity:
Common stock, $.01 par value, 35,000,000 shares authorized; 3,352,405 and 2,843,749 shares issued and outstanding at September 30, 2011 and December 31, 2010, respectively	33,524	28,437
Additional paid-in capital	145,277,601	143,106,355
Accumulated deficit	(134,899,584)	(124,564,120)
Accumulated other comprehensive income	110,009	107,669
Total stockholders' equity	10,521,550	18,678,341
Total liabilities and stockholders' equity	$ 47,028,504	$ 49,495,718