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Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 25, 2019
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Mar. 31, 2019
Option Indexed to Issuer's Equity [Line Items]            
Intrinsic value of warrants outstanding and exercisable   $ 0   $ 0    
Common stock issued for convertible notes, value   $ 53 $ 1,181  
Common stock issued for convertible notes    
Common stock, authorized   500,000,000   500,000,000   500,000,000
Preferred stock, authorized   10,000,000   10,000,000   10,000,000
Preferred stock, par value (in dollars per share)   $ 0.001   $ 0.001   $ 0.001
Accounts Payable and accrued liabilities   $ 300   $ 300    
Securities Purchase Agreements [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Description of common stock offering The Company agreed to sell a total of 5,000,000 shares of the Company’s common stock at a price per share of $2.10. The gross proceeds to the Company were $10.5 million.. The net proceeds of the Offering to the Company was $9.6 million, after deducting placement agent fees and other offering expenses totaling $0.9 million paid by the Company.          
Sale of stock issued by shares 5,000,000          
Sale of stock price per share $ 2.10          
Net proceeds from offering cost $ 9,600          
Other offering expenses 900          
Gross proceeds from common stock $ 10,500          
Consultants [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Common restricted stock issued for services, value       $ 2,500 $ 1,200  
Common restricted stock issued for services, shares       559,586 143,523  
Expense related to restricted stock issuances   200 $ 500 $ 400 $ 700  
Unrecognized compensation cost   500   500    
Employees [Member]            
Option Indexed to Issuer's Equity [Line Items]            
Expense related to restricted stock issuances     $ 200   $ 300  
Stock issuances to employees   $ 100   $ 100