Consolidated Statements of Changes In Shareholders' Equity (Parenthetical) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Stock issued during period, shares, Scottdale shareholders	1,878,827
Stock issued during period shares, Director Stock Purchase Plans	1,819
Common Stock [Member]
Stock issued during period, shares, Employee Stock Purchase Plans	1,655	1,940