Segment Information (Business Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net Sales	$ 61,404	$ 59,919	$ 198,213	$ 191,341
Segment profit (loss)	4,175	4,548	18,164	17,633
Total assets, net	307,205	300,072	307,205	300,072	$ 294,209
Property, Plant and Equipment, Additions	8,582	7,171	27,409	24,987
Depreciation and Amortization	5,209	4,879	15,173	14,246
Extremity
Segment Reporting Information [Line Items]
Net Sales	27,684	23,394	87,105	73,061
Segment profit (loss)	2,935	3,369	11,501	11,173
Total assets, net	53,747	45,513	53,747	45,513
Property, Plant and Equipment, Additions	1,474	1,761	6,737	4,374
Depreciation and Amortization	997	1,103	2,799	2,542
Knee
Segment Reporting Information [Line Items]
Net Sales	16,545	17,027	56,198	56,432
Segment profit (loss)	344	790	2,644	3,223
Total assets, net	75,444	73,962	75,444	73,962
Property, Plant and Equipment, Additions	1,925	481	4,219	4,577
Depreciation and Amortization	1,840	1,307	5,290	5,067
Hip
Segment Reporting Information [Line Items]
Net Sales	11,306	11,629	34,951	35,554
Segment profit (loss)	493	911	2,629	3,363
Total assets, net	42,578	41,541	42,578	41,541
Property, Plant and Equipment, Additions	602	1,401	4,259	3,919
Depreciation and Amortization	734	957	2,170	2,320
Other
Segment Reporting Information [Line Items]
Net Sales	5,869	7,869	19,959	26,294
Segment profit (loss)	152	(481)	490	(225)
Total assets, net	17,931	34,219	17,931	34,219
Property, Plant and Equipment, Additions	476	873	4,024	5,968
Depreciation and Amortization	162	687	605	1,551
Corporate
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Segment profit (loss)	251	(41)	900	99
Total assets, net	117,505	104,837	117,505	104,837
Property, Plant and Equipment, Additions	4,105	2,655	8,170	6,149
Depreciation and Amortization	$ 1,476	$ 825	$ 4,309	$ 2,766