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BORROWINGS (Future Principal Payments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Long-term Debt $ 9,488 $ 0
Master Lease Agreement | U.S. Bank Equipment Finance    
Debt Instrument [Line Items]    
2016 1,059  
2017 1,098  
2018 1,138  
2019 1,179  
2020 1,120  
Thereafter 0  
Long-term Debt 5,594  
Loan Agreement    
Debt Instrument [Line Items]    
2016 0  
2017 1,145  
2018 1,145  
2019 1,145  
2020 1,145  
Thereafter 4,908  
Long-term Debt $ 9,488