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Basis of Presentation and Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Loss per Share (Details) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Numerator:    
Loss from continuing operations $ (4,522) $ (1,977)
Loss from discontinued operations 0 (12)
Net loss $ (4,522) $ (1,989)
Denominator:    
Basic weighted average common shares outstanding (in shares) 11,718 11,650
Potential common shares from equity awards and warrants (in shares) 0 0
Diluted weighted average shares (in shares) 11,718 11,650