Supplemental disclosure of cash flow and non-cash investing and financing activities (Tables)

9 Months Ended

Sep. 30, 2014

Supplemental Cash Flow Elements [Abstract]

Supplemental Disclosure of Cash Flow and Non-cash Investing and Financing Activities

Selected cash payments, receipts, and noncash activities are as follows:

	Nine Months Ended September 30,
	2014		2013
Cash paid for interest	$	38,347	$	22,971
Prepaid income taxes	80,953		96,967
Purchases of equipment financed through capital leases	—		107,259
Stock issuance of 13,158 shares in exchange for services performed	86,391		—
Stock issuance of 5,272,004 shares in exchange for convertible debt	—		5,272,004
Tenant improvement incentive	—		996,866