Stock Repurchase Program (Details) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2018	Jun. 16, 2014	Feb. 13, 2007	Jul. 24, 2002
Stock Repurchase Program (Textual)
Outstanding common stock to be repurchased	13	250
Common Stock [Member] | 2002 Program [Member]
Stock Repurchase Program (Textual)
Value of outstanding common stock to be repurchased	$ 72			$ 300
Outstanding common stock to be repurchased	100
Common Stock [Member] | 2007 Program [Member]
Stock Repurchase Program (Textual)
Outstanding common stock to be repurchased			100