Interim Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 7,142	$ 5,738
Series A Convertible Preferred Stock; par value (in dollars per share)	$ 0.01	$ 0.01
Series A Convertible Preferred Stock; shares authorized (in shares)	25,000,000	25,000,000
Series A Convertible Preferred Stock; shares issued (in shares)	10,761,692	10,836,659
Series A Convertible Preferred Stock; liquidation value (in shares)	10,761,692	10,836,659
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 (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	14,305,185	1,411,085
Common stock, shares outstanding (in shares)	14,305,185	1,411,085