Quarterly report pursuant to Section 13 or 15(d)

Common and Preferred Stock (Details)

v3.19.2
Common and Preferred Stock (Details)
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Oct. 15, 2018
USD ($)
$ / shares
shares
Oct. 10, 2018
shares
Sep. 11, 2017
USD ($)
D
$ / shares
shares
Aug. 05, 2016
USD ($)
Oct. 31, 2018
$ / shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Preferred Stock, Dividend Rate, Percentage                   2.00%
Proceeds from Issuance of Common Stock                   $ 12,200,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 13,672,173                  
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 1.38       $ 1.38          
Shares Issued, Price Per Share | $ / shares $ 1.15                  
Preferred Stock Redemption Discount                   $ 9,100,000
Percentage of issue of the public offering         120.00%          
Preferred Stock Shares Converted | shares           302   1,338    
Preferred Shares, Unamortized Discount From Conversion           $ 117,000   $ 515,000    
Conversion of Stock, Shares Converted | shares               7,900    
Common Stock, Discount on Shares           $ 3,000,000   $ 3,000,000    
Proceeds from Issuance or Sale of Equity $ 18,600,000                  
Over-Allotment Option [Member]                    
Stock Issued During Period, Shares, New Issues | shares 2,428,825 2,428,825                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 2,428,825 2,428,825                
Issue of warrants to purchase common stock | shares   1,807,826                
Fbr Capital Markets Co [Member]                    
Stock Issued During Period, Shares, New Issues | shares             0   1,700,000 3,500,000
Stock Issued During Period, Value, New Issues       $ 40,000,000            
Brokerage Commission percentage       3.00%            
Proceeds from Issuance of Common Stock             $ 400,000   $ 400,000 $ 12,200,000
Series A Preferred Stock [Member]                    
Preferred Stock, Par or Stated Value Per Share | $ / shares           $ 0.001   $ 0.001   $ 0.001
Preferred Stock, Dividend Rate, Percentage     2.00%              
Preferred Stock Conversion Price Per Share | $ / shares     $ 18.90              
Debt Instrument, Convertible, Threshold Trading Days | D     20              
Debt Instrument, Convertible, Threshold Consecutive Trading Days | D     30              
Dividends Payable, Amount Per Share | $ / shares     $ 70.00              
Adjustments to Additional Paid in Capital, Stock Split     $ 7,875              
Preferred Stock Dividends, Income Statement Impact           $ 61,000 61,000 $ 122,000 120,000  
Series A Preferred Stock [Member] | Private Placement [Member]                    
Stock Issued During Period, Shares, New Issues | shares     120,000              
Preferred Stock, Par or Stated Value Per Share | $ / shares     $ 0.001              
Proceeds from Issuance of Convertible Preferred Stock     $ 12,000,000              
Sale of Stock, Consideration Received Per Transaction     $ 100              
Series B Preferred Stock [Member]                    
Preferred Stock, Par or Stated Value Per Share | $ / shares $ 1,000         $ 1,000   $ 1,000   $ 1,000
Preferred Stock Dividends, Income Statement Impact           $ 117,000 $ 0 $ 515,000 $ 0  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 13,672,173                  
Stock Issued During Period, Value, Issued for Services $ 1,000                  
Percentage Exceed Aggregate Number Of Common Stock         4.99%          
Percentage Exceed Aggregate Number Of Common Stock Outstanding         9.99%          
Increase Decrease in Excess of Other Percentage         9.99%          
Conversion of Stock, Shares Converted | shares 13,672,173                  
Common Class A [Member]                    
Stock Issued During Period, Shares, New Issues | shares 2,520,000                  
Common Class B [Member]                    
Stock Issued During Period, Shares, New Issues | shares 15,723                  
Preferred Stock Conversion Price Per Share | $ / shares $ 1.15