Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2019

Stockholders' Equity Note [Abstract]

Components of Dividends Declared and Undeclared and in Kind Dividends Deemed on Preferred Stock

	Year ended December 31,
	2019		2018		2017
Preferred D dividends accrued at stated rate	$	-	$	-	$	650
Preferred D inducement to convert		-		-		11,110
Preferred E dividends accrued at stated rate		578		578		483
Dividends declared and undeclared and in kind dividends deemed on preferred stock	$	578	$	578	$	12,243