Annual report pursuant to Section 13 and 15(d)

Note 12 - Stockholders' Equity (Details Textual)

v3.19.1
Note 12 - Stockholders' Equity (Details Textual) - USD ($)
12 Months Ended
Jun. 08, 2018
May 31, 2018
May 02, 2018
Apr. 26, 2018
Mar. 26, 2018
Feb. 08, 2018
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
Cumulative Effect of New Accounting Principle in Period of Adoption                 $ (12,069,000)
Debt Instrument, Unamortized Discount, Total             $ 32,005,000   27,373,000
Adjustment to Stockholders Equity Due to Unamortized Debt Discount           $ 400,000      
Stock Issued During Period, Shares, New Issues         103,213        
Proceeds from Issuance of Private Placement         $ 1,800,000        
Stock Issued During Period, Value, New Issues             $ 42,996,000    
Class of Warrant or Right, Exercised During Period 38,857 250,693              
Class of Warrant or Right, Exercised During Period, Exercise Price $ 0.01 $ 0.01              
Common Stock Held in Treasury in Exchange for Payment of Warrants Converted             108    
Carlyle Group [Member] | Convertible Senior Notes Converted to Warrants [Member]                  
Debt Conversion, Original Debt, Amount     $ 50,000,000            
Private Placement [Member]                  
Stock Issued During Period, Value, New Issues       $ 56,855,000          
FGUSA Credit Facility [Member]                  
Debt Agreement, Maximum Borrowing Capacity           131,100,000      
Debt Instrument, Unamortized Discount, Total           10,000,000      
FGUSA Credit Facility [Member] | Revolving Credit Facility [Member]                  
Debt Instrument, Unamortized Discount, Total           500,000      
FGUSA Credit Facility [Member] | Term Loan [Member]                  
Debt Instrument, Unamortized Discount, Total           9,500,000      
Falcon Global USA LLC [Member]                  
Payments for Debtor-in-possession Obligations           $ 15,000,000      
Retained Earnings [Member]                  
Cumulative Effect of New Accounting Principle in Period of Adoption               $ (12,100,000) $ (12,069,000)
Stock Issued During Period, Value, New Issues