SEGMENT REPORTING - Supplemental information related to significant assets (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Identifiable assets	$ 105,127	$ 105,725
Intangible assets	10,125	11,020
Surgical products
Segment Reporting Information [Line Items]
Identifiable assets	69,965	70,361
Intangible assets	5,958	6,644
Brachytherapy Seed
Segment Reporting Information [Line Items]
Identifiable assets	61,577	62,474
Intangible assets	4,167	4,376
Corporate investment in subsidiaries
Segment Reporting Information [Line Items]
Identifiable assets	111,439	111,439
Intersegment eliminations
Segment Reporting Information [Line Items]
Identifiable assets	$ (137,854)	$ (138,549)