Supplemental disclosure of cash flow and non-cash investing and financing activities (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Supplemental disclosure of cash flow and non-cash investing and financing activities [Abstract]
Cash paid for interest	$ 38,347	$ 22,971
Prepaid income taxes	80,953	96,967
Purchases of equipment financed through capital leases	0	107,259
Shares issued for services performed	86,391	0
Shares issued for services performed (in shares)	13,158	0
Stock issuance of 5,272,004 shares in exchange for convertible debt	0	5,272,004
Stock issued for convertible debt (in shares)	0	5,272,004
Tenant improvement incentive	$ 0	$ 996,866