Quarterly report pursuant to Section 13 or 15(d)

Convertible Notes and Revolving Credit Facility (Narrative) (Details)

v3.19.1
Convertible Notes and Revolving Credit Facility (Narrative) (Details) - USD ($)
1 Months Ended
Mar. 06, 2019
Dec. 02, 2018
Nov. 05, 2018
Dec. 02, 2017
Feb. 25, 2019
Feb. 28, 2019
Jan. 31, 2019
Feb. 29, 2012
Convertible Notes Payable [Member]                
Debt Instrument [Line Items]                
Convertible debt             $ 1,000,000  
Repayment of principal amount on convertible debt   $ 1,160,000            
Convertible Notes Payable [Member] | Subsequent Event [Member]                
Debt Instrument [Line Items]                
Convertible debt         $ 2,000,000      
Repayment of principal amount on convertible debt         1,000,000      
Line of credit, maximum borrowing capacity         $ 10,000,000      
Maturity date         Dec. 01, 2019      
Revolving Credit Facility [Member] | Subsequent Event [Member]                
Debt Instrument [Line Items]                
Line of credit, maximum borrowing capacity $ 5,000,000              
Interest rate 12.00%              
Maturity date Sep. 06, 2020              
Upfront payment of facility fee $ 10,000,000              
Commitment fee percentage, payable quarterly 1.00%              
HEMG [Member] | Subsequent Event [Member]                
Debt Instrument [Line Items]                
Notes payable           $ 200,000    
2 Year Promissory Notes [Member]                
Debt Instrument [Line Items]                
Interest rate               0.19%
Debt conversion, price per share               $ 12.00
Convertible Promissory Note Dated February 29, 2012 [Member]                
Debt Instrument [Line Items]                
Face value of loan               $ 50,000
Convertible Debt [Member] | USU [Member]                
Debt Instrument [Line Items]                
Interest rate       8.00%        
Debt conversion, price per share       $ 2.00        
Debt maturity period       2 years        
Conversion of note into common share       $ 1,000,000        
Proceeds from convertible note issued       $ 2,000,000        
Credit Facility Agreement [Member] | Revolving Credit Facility [Member]                
Debt Instrument [Line Items]                
Line of credit, maximum borrowing capacity     $ 5,000,000          
Interest rate     12.00%          
Maturity date     Nov. 04, 2021          
Upfront payment of facility fee     $ 100,000          
Commitment fee percentage, payable quarterly     2.00%          
Common stock issuable from warrants     92,049          
Warrant exercise price     $ 5.85          
Warrant term     5 years          
Fair value of warrants     $ 255,071