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

3 Months Ended

Mar. 31, 2013

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

	Level		March 31, 2013		December 31, 2012
Warrant liabilities:	3	$	220	$	90

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

	Fair value at March 31, 2013		Valuation technique	Unobservable input
Liabilities:
Warrant liabilities	$	220	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:	$	220	$	220
Total	$	220	$	220

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

Warrant liabilities
Opening balance – December 31, 2012	$	90
Purchases, sales, issuances, and settlements
Transfers into and (or) out of Level 3
Change in fair value		130
Unrealized gains / (losses)
Other adjustments
Closing balance – March 31, 2013	$	220

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

		March 31, 2013				December 31, 2012
		Carrying value		Fair value		Carrying value		Fair value
Accounts receivable, net	2	$	715	$	715	$	1,498	$	1,498
Trade accounts payable	2	$	1,665	$	1,665	$	2,599	$	2,599
Capital lease obligation	2	$	9	$	9	$	9	$	9
Note payable	2	$	6,680	$	6,680	$	6,680	$	6,680