Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Consolidated Balance Sheets
Property, plant, and equipment, accumulated depreciation	$ 27,603	$ 26,539
Leased property under capital lease, accumulated depreciation	$ 1,550	$ 1,162
Series C redeemable convertible Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Series C redeemable convertible Preferred Stock, shares authorized	10,431	10,431
Series C redeemable convertible Preferred Stock, shares issued	5,231	5,231
Series C redeemable convertible Preferred Stock, shares outstanding	5,231	5,231
Series C redeemable convertible Preferred Stock, aggregate involuntary liquidation preference (in dollars)	$ 16,664	$ 16,664
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	450,000,000	450,000,000
Common Stock, shares issued	180,338,980	173,644,532
Common stock in treasury, shares	378,116	378,116