Summary of significant accounting policies (Tables)

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Company's revenues

The revenues for each of these lines are as follows:

Nine Month Period Ended September 30,	2013		2012
(in thousands, unaudited)
Refrigerant and reclamation sales	$	50,564	$	48,639
RefrigerantSide® services		3,252		2,939
Total	$	53,816	$	51,578

Reconciliation of shares used to determine net income per share

The reconciliation of shares used to determine net income (loss) per share is as follows (dollars in thousands, unaudited):

	Three Month Period				Nine Month Period
	Ended September 30,				Ended September 30,
	2013		2012		2013		2012
Net income (loss)	$	(9,115)	$	2,194	$	(4,312)	$	9,837
Weighted average number of shares – basic		25,070,386		23,928,081		24,751,674		23,834,685
Weighted average number of shares underlying warrants		0		398,492		0		297,826
Weighted average number of shares underlying options		0		2,240,101		0		2,108,762
Weighted average number of shares outstanding – diluted		25,070,386		26,566,674		24,751,674		26,241,273