Condensed Consolidated Balance Sheets (Current Period Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 646,000	$ 2,536,000
Accounts receivable, net	3,123,000	1,577,000
Inventories	2,040,000	1,773,000
Prepaid expenses and other receivables	452,000	253,000
Total current assets	6,261,000	6,139,000
Property, plant and equipment, net	2,657,000	2,691,000
Product acquisition costs	1,426,000
Restricted cash, long term	54,000	54,000
License fee, net	275,000	300,000
Debt issuance costs, net	92,000	100,000
Other	155,000	143,000
Total assets	10,920,000	9,427,000
Current liabilities:
Accounts payable	877,000	1,091,000
Accrued expenses	1,460,000	820,000
Deferred income, current	127,000	48,000
Capital lease obligation, current	17,000	17,000
Total current liabilities	2,481,000	1,976,000
Note payable, bank	2,000,000	1,000,000
Deferred income, long term	18,000	20,000
Capital lease obligation, long term		4,000
Total liabilities	4,499,000	3,000,000
Stockholders’ equity:
Common stock	451,000	446,000
Additional paid-in capital	47,655,000	47,409,000
Accumulated deficit	(43,702,000)	(43,445,000)
Total stockholders’ equity	6,421,000	6,427,000
Total liabilities and stockholders' equity	10,920,000	9,427,000
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