Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Fair Value Measurements (Narrative) (Details)

v3.7.0.1
Fair Value Measurements (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Change in fair value of obligations in connection with acquisitions $ 617   $ (587) $ 1,313 $ 140
Solid Concepts Inc [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Remaining obligations in connection with acquisitions 3,900     3,900  
Increase to fair value of deferred payments if Company's share price increased by 10%       4,000  
Increase to fair value of deferred payments if there was a 10% change in share price volatility used in calculation of discount       400  
Increased fair value of deferred payments liability $ 4,000     $ 4,000  
Solid Concepts Inc [Member] | Ordinary Shares [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Ordinary shares issued as consideration for business acquisition   152,633      
Value of ordinary shares issued as consideration for business acquisition   $ 3,100      
Cash given as consideration for business acquisition   $ 400