Selected Balance Sheet Information

12 Months Ended

Dec. 31, 2011

Disclosure Text Block Supplement [Abstract]

Supplemental Balance Sheet Disclosures [Text Block]

4. Selected Balance Sheet Information

Accounts receivable (in thousands)

	December 31,
	2011			2010
Accounts receivable	$	692		$	472
Bad debt allowance - customer		(287	)		(133	)
Total	$	405		$	339

Other current assets (in thousands)

	December 31,
	2011		2010
Grant receivable	$	-	$	320
Prepaid expenses		16		23
Total	$	16	$	343

Property and equipment (in thousands) 

	December 31,
	2011			2010
Leasehold improvements	$	-		$	863
Manufacturing equipment		400			333
Computer and office equipment		159			160
Laboratory equipment		136			214
		695			1,570
Less accumulated depreciation		(372	)		(1,095	)
Total	$	323		$	475

Accrued expenses (in thousands) 

	December 31,
	2011		2010
Accrued vendor payments	$	1	$	105
Bonus		-		100
Compensation		28		5
Total	$	29	$	210