Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Receivables allowance for doubtful accounts (in Dollars)	$ 12	$ 63
Preferred stock, par value (in Dollars per share)	$ 10	$ 10
Preferred stock, shares authorized (in Shares)	1,000	1,000
Preferred stock, shares issued (in Shares)	437	437
Preferred stock, shares outstanding (in Shares)	437	437
Preferred stock, percentage non-cumulative	5.00%	5.00%
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, shares authorized (in Shares)	40,000,000	40,000,000
Common stock, shares issued (in Shares)	18,115,965	19,530,344
Common stock, shares outstanding (in Shares)	17,934,233	18,115,965
Treasury stock, shares of (in Shares)	181,732	1,414,379