Prepaid Expenses And Other Current Assets

9 Months Ended

Sep. 30, 2012

Prepaid Expenses And Other Current 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:

	September 30,	December 31,
	2012	2011
Prepaid expenses	$ 396,687	$ 460,297
Deferred cost of revenue	239,896	289,312
Derivative asset	816	-
Other assets	2,736,494	2,331,875
Total prepaid expenses and other current assets	$ 3,373,893	$ 3,081,484

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.

The derivative asset represents the fair value of a debt conversion feature that is part of the subordinated convertible debentures agreement.  Refer to Notes 9 and 11 for discussion of the debentures and fair value measurement, respectively.