Stockholders' Equity Common Stock Offering (Details) - USD ($) $ in Thousands		12 Months Ended
	Nov. 07, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Nov. 12, 2019
Common Stock Offering [Abstract]
Stock Issued During Period, Shares, New Issues	3,652,000
Proceeds from Issuance of Common Stock	$ 8,200	$ 0	$ 8,201	$ 0
Payment of debt, accrued interest and prepayment fee					$ 4,800
Proceeds from issuance of stock, after costs and extinguishment of debt					$ 3,400