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Organization and Summary of Significant Accounting Policies - Going Concerns Uncertainty (Details) - Going Concerns
12 Months Ended
Dec. 31, 2016
USD ($)
Leverage ratio 4.25
Fixed charge coverage ratio 4.25
Default amount $ 122,100,000
Equipment Financing Debt  
Default amount $ 5,200,000
ABL Credit Facility  
Percentage of maximum revolver amount 12.50%
ABL Credit Facility | Minimum  
Maximum Revolver Amount $ 50,000,000
ABL Credit Facility | Maximum  
Threshold Limit For Liquidity Amount $ 6,125,000