General form of registration statement for all companies including face-amount certificate companies

Redeemable series E convertible preferred stock (Details)

v3.20.1
Redeemable series E convertible preferred stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Nov. 21, 2019
May 13, 2019
May 10, 2019
Dec. 31, 2019
May 06, 2019
Dec. 31, 2018
Dec. 12, 2018
Redeemable Preferred Stock [Abstract]              
Share price (in dollars per share)             $ 1.95
Dividends [Abstract]              
Accrued dividends       $ 256   $ 0  
Series E Convertible Preferred Stock [Member]              
Redeemable Preferred Stock [Abstract]              
Preferred stock, shares outstanding (in shares)       1,387,378 2,633,678    
Share price (in dollars per share)         $ 6.00    
Preferred stock, stated value (in dollars per share)       $ 0.99      
Preferred stock, conversion price (in dollars per share)       $ 0.78      
Converted to common stock (in shares) (320,542) (236,364) (689,394)        
Number of common stock, shares issued upon conversion of preferred stock (in shares) 406,841 300,000 875,000        
Dividends [Abstract]              
Preferred stock, dividend rate       10.00%      
Accrued dividends       $ 300   $ 0  
Redemption [Abstract]              
Preferred stock, mandatory redemption price in percentage of stated value       125.00%      
Preferred stock, mandatory redemption price (in dollars per share)       $ 1.23      
Preferred stock, mandatory redemption price in percentage of market price       75.00%