Annual report pursuant to Section 13 and 15(d)

Intangible Assets and Goodwill Changes In Intangible Assets (Details)

v3.7.0.1
Intangible Assets and Goodwill Changes In Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]                      
Amortization of purchased intangibles $ 217 $ 221 $ 227 $ 226 $ 199 $ 200 $ 200 $ 199 $ 891 $ 798 $ 652
Original cost 14,885       15,910       14,885 15,910  
Accumulated amortization (6,775)       (4,878)       (6,775) (4,878)  
Net identifiable intangible assets 8,110       11,032       $ 8,110 $ 11,032  
Weighted-average useful lives (years)                 9 years 9 years  
Amortization of intangible assets                 $ 2,142 $ 2,066 $ 1,302
Customer relationships                      
Finite-Lived Intangible Assets [Line Items]                      
Original cost 4,759       5,115       4,759 5,115  
Accumulated amortization (1,577)       (1,075)       (1,577) (1,075)  
Net identifiable intangible assets 3,182       4,040       $ 3,182 $ 4,040  
Weighted-average useful lives (years)                 10 years 10 years  
Developed technology                      
Finite-Lived Intangible Assets [Line Items]                      
Original cost 7,917       8,567       $ 7,917 $ 8,567  
Accumulated amortization (4,509)       (3,261)       (4,509) (3,261)  
Net identifiable intangible assets 3,408       5,306       $ 3,408 $ 5,306  
Weighted-average useful lives (years)                 6 years 6 years  
Trademarks / trade names                      
Finite-Lived Intangible Assets [Line Items]                      
Original cost 2,178       2,190       $ 2,178 $ 2,190  
Accumulated amortization (658)       (528)       (658) (528)  
Net identifiable intangible assets 1,520       1,662       $ 1,520 $ 1,662  
Weighted-average useful lives (years)                 15 years 15 years  
Covenants not to compete                      
Finite-Lived Intangible Assets [Line Items]                      
Original cost 31       38       $ 31 $ 38  
Accumulated amortization (31)       (14)       (31) (14)  
Net identifiable intangible assets $ 0       $ 24       $ 0 $ 24  
Weighted-average useful lives (years)                 2 years 2 years