Shareholders' Equity - Restricted Stock (Details) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Equity [Abstract]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	132,726	107,719
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 469,900	$ 651,700