Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Allowance of accounts receivable (in Dollars)	$ 329	$ 288
Mandatorily redeemable series A preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Mandatorily redeemable series A preferred stock, shares authorized	360,000	360,000
Mandatorily redeemable series A preferred stock, shares issued	152,811	147,030
Mandatorily redeemable series A preferred stock, shares outstanding	152,811	147,030
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	8,453,671	8,453,671
Common stock, shares outstanding	7,214,784	7,214,784
Treasury stock shares repurchased	1,238,887	1,238,887