Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2011

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

13. Supplemental Cash Flow Information

	Year ended December 31,
	2011		2010		2009
Cash paid for interest	$	1,253	$	2,370	$	1,535
Noncash investing and financing activities:
Assets acquired under capital lease or seller notes payable	$	29	$	46	$	–
Accrued capital expenditures	$	705	$	104	$	–
Issuance of common stock in connection with the Canada Exchange acquisition	$	3,220	$	-	$	–
Issuance of common stock in connection with the Omnifrio Acquisition	$	7,060	$	-	$	–
Issuance of common stock in connection with the Refill acquisition	$	–	$	34,621	$	–
Beneficial Conversion of Series B preferred stock	$	–	$	2,933	$	–
Beneficial Conversion of Series C preferred stock	$	–	$	2,404	$	–
Warrant modification charges	$	–	$	2,491	$	–
Preferred dividends accrued not paid	$	–	$	–	$	1,785