Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Stockholders' Equity (Parenthetical)

v3.20.4
Consolidated Statements of Stockholders' Equity (Parenthetical) - Common Stock - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Underwritten Public Offering      
Stock issuance, discounts, commissions and offering costs $ 583 $ 284 $ 526
At The Market Offering      
Stock issuance, discounts, commissions and offering costs $ 1,887 $ 1,553 $ 1,310