Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details)

v3.19.3.a.u2
Stock-based Compensation - Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details) - Restricted Shares [Member] - shares
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Common Stock [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Shares available for grant, beginning 547,790 1,211,234
Additional shares available for grant  
RSUs granted (180,000) (707,200)
RSUs forfeited 33,948 43,756
Shares available for grant, ending 401,738 547,790
Preferred Stock [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Shares available for grant, beginning 182,400 27,200
Additional shares available for grant   200,000
RSUs granted (48,746) (44,800)
RSUs forfeited
Shares available for grant, ending 133,654 182,400