Discontinued Operations (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended			3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2011 Reconstructive Division	Jun. 30, 2011 Reconstructive Division	Jun. 30, 2012 Reconstructive Division	Dec. 31, 2011 Reconstructive Division	Jun. 30, 2011 Spine Division	Jun. 30, 2011 Spine Division	Jun. 30, 2012 Spine Division
Date division sold							2011-06-10				2011-04-04
Sale of product line					$ 9,960,000	$ 9,960,000			$ 3,000,000	$ 3,000,000
Inventory sold					2,908,000	2,908,000
Property and equipment sold					1,718,000	1,718,000
Total cash consideration received by the Company					14,586,000	14,586,000			3,000,000	3,000,000
Cash held in escrow at sale					1,159,000	1,159,000			300,000	300,000
Cash remaining in escrow							0	900,000
Carrying amount of assets sold					4,059,000	4,059,000
Gain on sale of division before income taxes	0	12,813,000	0	12,813,000	10,527,000	10,527,000			2,286,000	2,286,000
Income tax expense on sale of divisions	0	560,000	0	560,000
Gain from sale of discontinued divisions, net of income taxes	0	12,253,000	0	12,253,000
Sales associated with discontinued operations	0	214,000	0	761,000
Pretax loss associated with discontinued operations	0	1,170,000	0	1,366,000
Royalty payments received	$ 17,000	$ 0	$ 28,000	$ 0
Future royalty income on net sales, percent							5.00%