Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Consolidated Condensed Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 124	$ 124
Common shares, par value	$ 1.00	$ 1.00
Common shares, shares authorized	20,000	20,000
Common shares, shares issued	5,738	5,727
Common shares, shares outstanding	5,738	5,727