Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENT (Details)

v3.8.0.1
SUBSEQUENT EVENT (Details)
 6 Months Ended 8 Months Ended 12 Months Ended
Nov. 15, 2017
USD ($)
Nov. 14, 2017
USD ($)
Nov. 06, 2017
USD ($)
$ / shares
shares
Nov. 05, 2017
Sep. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Sep. 30, 2018
Nov. 08, 2017
USD ($)
Dec. 31, 2012
Subsequent Event [Line Items]                  
Minimum liquidity set at initial closing         $ 20,000,000        
Term loan agreement                  
Subsequent Event [Line Items]                  
DDTL         $ 20,000,000        
4.50% convertible subordinated notes                  
Subsequent Event [Line Items]                  
Stated interest rate         4.50%       4.50%
Subsequent event                  
Subsequent Event [Line Items]                  
Minimum liquidity set at initial closing           $ 12,000,000.0      
Aggregate closing and amendment fees     $ 800,000            
Warrants issued | shares     330,000            
Exercise price (usd per share) | $ / shares     $ 0.01            
Exercisable immediately (in shares) | shares     198,000            
Contingently exercisable (in shares) | shares     132,000            
Subsequent event | Term loan agreement                  
Subsequent Event [Line Items]                  
IDDTL     $ 20,000,000.0         $ 20,000,000  
Increase in margin percentage     0.50%            
Decrease in fixed charge coverage ratio multiplier     0.25            
One-time minimum liquidity requirement $ 20,000,000.0 $ 27,000,000.0              
DDTL               $ 20,000,000  
Subsequent event | Term loan agreement | First period                  
Subsequent Event [Line Items]                  
Installment     $ 1,000,000.0            
Subsequent event | Term loan agreement | Second period                  
Subsequent Event [Line Items]                  
Installment     2,500,000.0            
Subsequent event | Minimum | Term loan agreement                  
Subsequent Event [Line Items]                  
Senior net leverage ratio multiplier             0.25    
Total leverage ratio multiplier             0.25    
Minimum liquidity requirement reset     12,000,000.0            
Subsequent event | Maximum | Term loan agreement                  
Subsequent Event [Line Items]                  
Senior net leverage ratio multiplier             1.50    
Total leverage ratio multiplier             1.75    
Minimum liquidity requirement reset     $ 20,000,000.0            
Subsequent event | LIBOR | Term loan agreement                  
Subsequent Event [Line Items]                  
Variable interest rate     8.25% 7.50%