(17) Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

(17) Quarterly Financial Data (Unaudited)

(17) Quarterly Financial Data (Unaudited)

The following is a summary of selected quarterly financial data for the years ended December 31, 2012 and 2011:

	Quarter
2012	First	Second	Third	Fourth
Revenue (a)	$         19,368,072	$     16,466,201	$     17,089,013	$     22,487,683
Gross profit	14,186,230	11,587,960	12,208,096	16,766,610
Net loss	(2,449,408)	(6,620,586)	(3,568,051)	(2,346,276)
Basic net loss per share	(0.05)	(0.14)	(0.08)	(0.05)
Diluted net loss per share	(0.05)	(0.14)	(0.08)	(0.05)
	Quarter
2011	First	Second	Third	Fourth
Revenue (a)	$         18,959,262	$     19,628,008	$     18,856,390	$     25,426,942
Gross profit	14,117,037	13,943,379	14,049,801	19,243,475
Net loss	(5,966,265)	(5,889,039)	(5,398,176)	(6,114,804)
Basic net loss per share	(0.13)	(0.13)	(0.12)	(0.13)
Diluted net loss per share	(0.13)	(0.13)	(0.12)	(0.13)

The sum of the quarterly net income (loss) per share amounts do not necessarily equal the annual amount reported, as per share amounts are computed independently for each quarter and the annual period based on the weighted average common shares outstanding in each period.

(a) The Company recorded a benefit (expense) of approximately $0.6 million, ($0.3) million, $0.2 million and $0.2 million during the first, second, third and fourth quarters of 2012, respectively representing the net impact from changes in accounts receivable allowances. These amounts are included within revenues in each respective period in the accompanying consolidated statements of operations.

(b) The Company recorded a benefit (expense) of approximately $0.9 million, ($0.2) million, ($0.4) million and $0.4 million during the first, second, third and fourth quarters of 2011, respectively representing the net impact from changes in accounts receivable allowances. These amounts are included within revenues in each respective period in the accompanying consolidated statements of operations.