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

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

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

	Level		September 30, 2013		December 31, 2012
Warrant liabilities:		3	$	120	$	90

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

	Fair value at September 30, 2013		Valuation technique	Unobservable input
Liabilities:
Warrant liabilities	$	120	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:	$	120	$	120
Total	$	120	$	120

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		30
Unrealized gains / (losses)
Other adjustments
Closing balance – September 30, 2013	$	120

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

		September 30, 2013				December 31, 2012
		Carrying value		Fair value		Carrying value		Fair value
Accounts receivable, net	2	$	1,473	$	1,473	$	1,498	$	1,498
Trade accounts payable	2	$	2,860	$	2,860	$	2,599	$	2,599
Capital lease obligation	2	$	6	$	6	$	9	$	9
Note payable	2	$	11,533	$	11,533	$	6,680	$	6,680