Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Allowance of accounts receivable (in Dollars)	$ 200	$ 339
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	178,103	171,436
Mandatorily redeemable series A preferred stock, shares outstanding	178,103	171,436
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
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