Shareholders' Equity Warrants outstanding dates (Details)	12 Months Ended
	Dec. 31, 2016
Expire Date 1 [Member]
Class of Stock [Line Items]
Investment Maturity Date Range Start	Sep. 16, 2013
Investment Warrants Expiration Date	Sep. 15, 2023
Expire Date 2 [Member]
Class of Stock [Line Items]
Investment Maturity Date Range Start	Feb. 03, 2014
Investment Warrants Expiration Date	Sep. 15, 2023