Stockholders' Equity Note Disclosure [Text Block] (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Aug. 31, 2016
Treasury Stock, Shares, Acquired	108,646	135,311
Treasury Stock, Value, Acquired, Cost Method	$ 4,051	$ 4,019
TREASURY STOCK, AT COST
Treasury Stock, Shares, Acquired	108,646	135,311
Treasury Stock, Value, Acquired, Cost Method	$ 4,051	$ 4,019
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture	95,339	123,274
IhcShareRepurchaseProgramMember
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			3,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	1,747,101