Summary of significant accounting policies (Tables)

6 Months Ended

Jun. 30, 2015

Accounting Policies [Abstract]

Company's revenues

The revenues for each of these lines are as follows:

Six Month Period Ended June 30,	2015		2014
(in thousands)
Refrigerant and reclamation sales	$	48,172	$	29,666
RefrigerantSide® Services		2,568		2,793
Total	$	50,740	$	32,459

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 June 30,				Six Month Period ended June 30,
	2015		2014		2015		2014
Net income	$	2,811	$	308	$	4,704	$	468
Weighted average number of shares - basic		32,542,672		26,267,746		32,454,175		25,679,066
Shares underlying warrants		406,840		155,833		393,064		206,105
Shares underlying options		1,433,580		1,423,093		1,407,662		1,472,765
Weighted average number of shares outstanding - diluted		34,383,092		27,846,672		34,254,901		27,357,936