Note 3 - Fair Value Measurements and Other Financial Measurements (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

			Year Ended December 31,
	Level		2012		2011
Warrant liabilities:		3	$	90	$	654

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

	Fair value at December 31, 2012		Valuation technique	Unobservable input
Liabilities:
Warrant liabilities	$	90	Monte Carlo option simulation model	Prevailing interest rates, Company’s stock price volatility, expected warrant term

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Fair Value		Carrying Value
Warrant liabilities:	$	90	$	90
Total	$	90	$	90

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Warrant liabilities
Opening balance – December 31, 2011	$	654
Purchases, sales, issuances, and settlements
Transfers into and (or) out of Level 3
Change in fair value		(564	)
Unrealized gains / (losses)
Other adjustments
Closing balance – December 31, 2012	$	90

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

		2012				2011
		Carrying value		Fair value		Carrying value		Fair value
Accounts receivable, net	2	$	1,498	$	1,498	$	333	$	333
Trade accounts payable	2	$	2,599	$	2,599	$	5,870	$	5,870
Capital lease obligation	2	$	9	$	9	$	12	$	12
Note payable	2	$	6,680	$	6,680