Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Allowance for doubtful accounts (in Dollars)	$ 4,972	$ 3,166
Series A Convertible Preferred Stock; par value (in Dollars per share)	$ 0.01	$ 0.01
Series A Convertible Preferred Stock; shares authorized	25,000,000	25,000,000
Series A Convertible Preferred Stock; shares issued	10,837,665	10,838,412
Series A Convertible Preferred Stock; shares outstanding	10,837,665	10,838,412
Series A Convertible Preferred Stock; liquidation value (in Dollars per share)	$ 15.75	$ 15.75
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	14,078,028	14,158,127
Common stock, shares outstanding	14,078,028	14,158,127