Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 1,313,000	$ 2,536,000	[1]
Accounts receivable, net	2,602,000	1,577,000	[1]
Inventories	2,104,000	1,773,000	[1]
Prepaid expenses and other receivables	297,000	253,000	[1]
Total current assets	6,316,000	6,139,000	[1]
Property, plant and equipment, net	2,650,000	2,691,000	[1]
Product acquisition costs, net	1,426,000		[1]
Restricted cash, long term	54,000	54,000	[1]
License fee, net	250,000	300,000	[1]
Debt issuance costs, net	85,000	100,000	[1]
Other	155,000	143,000	[1]
Total assets	10,936,000	9,427,000	[1]
Current liabilities:
Accounts payable	1,179,000	1,091,000	[1]
Accrued expenses	1,433,000	820,000	[1]
Deferred income, current	104,000	48,000	[1]
Capital lease obligation, current	13,000	17,000	[1]
Total current liabilities	2,729,000	1,976,000	[1]
Note payable, bank	2,000,000	1,000,000	[1]
Deferred income, long term	17,000	20,000	[1]
Capital lease obligation, long term		4,000	[1]
Total liabilities	4,746,000	3,000,000	[1]
Commitments and contingencies			[1]
Stockholders’ equity:
Common stock	452,000	446,000	[1]
Additional paid-in capital	47,826,000	47,409,000	[1]
Accumulated deficit	(44,105,000)	(43,445,000)	[1]
Total stockholders’ equity	6,190,000	6,427,000	[1]
Total liabilities and stockholders' equity	10,936,000	9,427,000	[1]
Series A Preferred Stock [Member]
Stockholders’ equity:
Convertible Preferred Stock	500,000	500,000	[1]
Series C Preferred Stock [Member]
Stockholders’ equity:
Convertible Preferred Stock	$ 1,517,000	$ 1,517,000	[1]

[1] Derived from the audited December 31, 2012 financial statements