Annual report pursuant to Section 13 and 15(d)

Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details)

v3.3.1.900
Nature of Operations and Summary of Significant Accounting Policies - Narrative (Details)
¥ in Millions
 12 Months Ended
Dec. 31, 2015
USD ($)
installment
Dec. 31, 2014
USD ($)
shares
Sep. 30, 2015
USD ($)
Jun. 30, 2015
CNY (¥)
Apr. 30, 2015
shares
Dec. 31, 2013
USD ($)
Oct. 19, 2007
shares
Property, Plant and Equipment [Line Items]              
Cash and cash equivalents $ 104,914,000 $ 44,816,000       $ 14,550,000  
Cash 47,431,000 37,314,000          
Cash equivalents 57,483,000 7,502,000          
Inventory valuation reserves 29,000 18,000          
Goodwill, impairment loss recorded 0 0          
Deferred tax liability recorded against undistributed foreign earnings 2,789,000 0 $ 9,300,000        
Loss on foreign exchange $ 204,000 $ 202,000          
Number of securities called by warrants | shares   88,097     88,097   3,141,499
Long-Term Incentive Plan, Payment Commencing in February of the Calendar Year Immediately Following the Conclusion of the Performance Period              
Property, Plant and Equipment [Line Items]              
Long-term incentive plan, percentage of award payable in cash 50.00%            
Long-term incentive plan, number of installments | installment 35            
Long-Term Incentive Plan, Payment Commencing in February 2021 and Ending in December 2023              
Property, Plant and Equipment [Line Items]              
Long-term incentive plan, percentage of award payable in cash 50.00%            
Long-term incentive plan, number of installments | installment 35            
Office Equipment | Minimum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 3 years            
Office Equipment | Maximum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 5 years            
Furniture and Fixtures | Minimum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 5 years            
Furniture and Fixtures | Maximum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 7 years            
Software | Minimum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 3 years            
Software | Maximum              
Property, Plant and Equipment [Line Items]              
Property, and equipment useful life 5 years            
Bank Deposit in Anticipation of Submitting Direct Selling License Application              
Property, Plant and Equipment [Line Items]              
Restricted cash $ 3,100,000     ¥ 20      
China              
Property, Plant and Equipment [Line Items]              
Cash and cash equivalents $ 4,400,000