Prepaid Expenses and Other Current Assets

6 Months Ended

Jun. 30, 2011

Prepaid Expense And Other Assets Abstract

Prepaid Expenses and Other Current Assets

4. Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following:

	June 30, 2011		December 31, 2010
Prepaid expenses	$	346,182	$	401,789
Deferred cost of revenue		400,851		759,271
Other assets		2,839,153		3,396,658
Total prepaid expenses and other current assets	$	3,586,186	$	4,557,718

Deferred cost of revenue represents the cost of systems for which title has transferred from the Company but for which revenue has not been recognized.