Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 1,775,000	$ 2,914,000
Accounts receivable, less allowance for doubtful accounts of $16 as of September 30, 2012 and December 31, 2011	1,186,000	1,208,000
Inventories	1,283,000	1,195,000
Other receivables	10,000	239,000
Prepaid expenses	149,000	130,000
Total current assets	4,403,000	5,686,000
Property, plant and equipment, net	2,756,000	2,800,000
Restricted cash, long term	54,000	54,000
License fee, net	325,000	400,000
Debt issuance costs, net	111,000	639,000
Other	180,000	57,000
Total assets	7,829,000	9,636,000
Current liabilities:
Accounts payable	699,000	629,000
Accrued expenses	636,000	611,000
Deferred income, current	32,000	38,000
Capital lease obligation, current	27,000	38,000
Total current liabilities	1,394,000	1,316,000
Note payable	1,000,000
Note payable, related party		500,000
Deferred income, long term	21,000	25,000
Capital lease obligation, long term	39,000	30,000
Total liabilities	2,454,000	1,871,000
Stockholders’ equity:
Common stock	423,000	415,000
Additional paid-in capital	46,593,000	46,246,000
Accumulated deficit	(42,263,000)	(39,518,000)
Less treasury stock, 1,965,740 common shares at cost	(1,395,000)	(1,395,000)
Total stockholders’ equity	5,375,000	7,765,000
Total liabilities and stockholders' equity	7,829,000	9,636,000
Series A Preferred Stock [Member]
Stockholders’ equity:
Convertible Preferred Stock	500,000	500,000
Series C Preferred Stock [Member]
Stockholders’ equity:
Convertible Preferred Stock	$ 1,517,000	$ 1,517,000