INCOME TAXES. (Details 5)

v3.20.1

INCOME TAXES. (Details 5)	12 Months Ended
	Dec. 31, 2018
Federal [Member]
Tax Years still open to audit	2016 – 2018
Arizona [Member]
Tax Years still open to audit	2015 – 2018
California [Member]
Tax Years still open to audit	2015 – 2018
Colorado [Member]
Tax Years still open to audit	2014 – 2018
Idaho [Member]
Tax Years still open to audit	2016 – 2018
Illinois [Member]
Tax Years still open to audit	2016 – 2018
Indiana [Member]
Tax Years still open to audit	2016 – 2018
Iowa [Member]
Tax Years still open to audit	2016 – 2018
Kansas [Member]
Tax Years still open to audit	2016 – 2018
Minnesota [Member]
Tax Years still open to audit	2016 – 2018
Missouri [Member]
Tax Years still open to audit	2016 – 2018
Nebraska [Member]
Tax Years still open to audit	2016 – 2018
Oklahoma [Member]
Tax Years still open to audit	2016 – 2018
Oregon [Member]
Tax Years still open to audit	2016 – 2018
Texas [Member]
Tax Years still open to audit	2015 – 2018