Segment Information (Business Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net Sales	$ 61,493	$ 63,919	$ 122,869	$ 127,177
Segment profit (loss)	5,342	6,472	10,934	13,076
Total assets, net	274,486	262,197	274,486	262,197	$ 261,040
Property, Plant and Equipment, Additions	4,453	4,594	9,437	8,246
Depreciation and Amortization	4,587	4,544	9,429	9,214
Knee
Segment Reporting Information [Line Items]
Net Sales	18,957	21,047	37,395	41,614
Segment profit (loss)	1,281	1,901	2,823	3,839
Total assets, net	66,031	67,635	66,031	67,635
Property, Plant and Equipment, Additions	1,134	1,128	3,196	2,114
Depreciation and Amortization	1,658	1,881	3,708	3,894
Hip
Segment Reporting Information [Line Items]
Net Sales	10,944	11,196	21,895	22,000
Segment profit (loss)	711	1,169	1,440	2,111
Total assets, net	33,280	33,774	33,280	33,774
Property, Plant and Equipment, Additions	761	804	1,678	1,512
Depreciation and Amortization	720	699	1,445	1,405
Biologics and Spine
Segment Reporting Information [Line Items]
Net Sales	5,873	6,470	11,013	12,292
Segment profit (loss)	299	370	530	404
Total assets, net	23,241	24,858	23,241	24,858
Property, Plant and Equipment, Additions	1,059	222	1,125	515
Depreciation and Amortization	276	300	559	603
Extremity
Segment Reporting Information [Line Items]
Net Sales	20,479	19,006	41,559	38,677
Segment profit (loss)	4,602	4,639	9,511	9,146
Total assets, net	35,440	26,990	35,440	26,990
Property, Plant and Equipment, Additions	857	1,059	1,909	1,978
Depreciation and Amortization	866	519	1,573	1,051
Other
Segment Reporting Information [Line Items]
Net Sales	5,240	6,200	11,007	12,594
Segment profit (loss)	(758)	(1,265)	(2,103)	(2,075)
Total assets, net	12,803	13,417	12,803	13,417
Property, Plant and Equipment, Additions	422	190	660	545
Depreciation and Amortization	128	181	266	332
Corporate
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Segment profit (loss)	(793)	(342)	(1,267)	(349)
Total assets, net	103,691	95,523	103,691	95,523
Property, Plant and Equipment, Additions	220	1,191	869	1,582
Depreciation and Amortization	$ 939	$ 964	$ 1,878	$ 1,929