Repurchase of Common Stock

6 Months Ended

Jun. 30, 2017

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Note 6. Repurchase of Common Stock

In 1999 and 2001, the Board of Directors approved resolutions authorizing the Company to repurchase up to a total of 1,000,000 shares of its own stock on the open market, which the Board reaffirmed in 2008. There were no shares repurchased during the three and six month periods ended June 30, 2017 or 2016, respectively. There are approximately 72,000 shares remaining under this repurchase authorization as of June 30, 2017.