13. Stockholder's Equity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Warrant
Beginning balance, shares	726,917	2,489,407
Warrants exercised, shares		(346,625)
Warrants expired, shares	(476,917)	(1,415,865)
Ending balance, shares	250,000	726,917	2,489,407
Ending balance Exercise Prices	$ 0.25
Minimum | Warrant
Warrants exercised, Exercise Prices		$ 1.20
Ending balance Exercise Prices		0.25
Maximum | Warrant
Warrants exercised, Exercise Prices		1.60
Ending balance Exercise Prices		$ 4.50
Warrant
Beginning balance, shares		2,489,407	1,934,667
Warrants issued, shares			629,740
Warrants exercised, shares			(25,000)
Warrants expired, shares			(50,000)
Ending balance, shares			2,489,407	1,934,667
Warrant | Minimum
Warrants issued, Exercise Prices			$ 1.20
Warrants exercised, Exercise Prices			1.20
Warrants expired, Exercise Prices			4.50
Ending balance Exercise Prices			0.25
Warrant | Maximum
Warrants issued, Exercise Prices			1.60
Ending balance Exercise Prices			$ 4.50
Minimum
Ending balance Exercise Prices				$ 0.25
Maximum
Ending balance Exercise Prices				$ 4.50