Summary of significant accounting policies (Tables)

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Company's revenues

The revenues for each of these lines are as follows:

Three Month Period Ended March 31,	2015		2014
(in thousands)
Refrigerant and reclamation sales	$	20,487	$	14,172
RefrigerantSide® Services		1,616		1,412
Total	$	22,103	$	15,584

Reconciliation of shares used to determine net income per share

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

	Three Month Period Ended March 31,
		2015		2014
Net Income	$	1,893	$	160
Weighted average number of shares - basic		32,333,443		25,090,386
Shares underlying warrants		378,780		293,234
Shares underlying options		1,568,162		1,468,058
Weighted average number of shares outstanding - diluted		34,280,385		26,851,678