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Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Jul. 25, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Option Indexed to Issuer's Equity [Line Items]          
Unrecognized compensation cost   $ 0   $ 0  
Intrinsic value of warrants outstanding and exercisable   0   0  
Accounts payable and accrued liabilities   600   600  
Securities Purchase Agreements [Member]          
Option Indexed to Issuer's Equity [Line Items]          
Description of common stock offering The Company sold a total of 5,000,000 shares of the its 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 were $9.5 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        
Consultants [Member]          
Option Indexed to Issuer's Equity [Line Items]          
Common restricted stock issued for services, value       $ 3,500 $ 700
Common restricted stock issued for services, shares       956,575 159,243
Expense related to restricted stock issuances   200 $ 200 $ 600 $ 1,400
Unrecognized compensation cost   300   300  
Employees [Member]          
Option Indexed to Issuer's Equity [Line Items]          
Stock issuances to employees   $ 0 $ 100 $ 100 $ 400