Stockholders Equity - Preferred Stock (Details) $ / shares in Units, $ in Millions			12 Months Ended
	Jan. 26, 2021	Jan. 25, 2021	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 shares	Jul. 12, 2017 USD ($)
Preferred Stock
Preferred stock, shares authorized			20,000,000	20,000,000
Preferred stock, shares outstanding			2,778,111	3,290,050
Preferred Stock, par value (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001
Reverse stock split	0.3333	0.3333
Series A Preferred Stock
Preferred Stock
Preferred stock, shares outstanding			2,778,111	3,290,050
Preferred Stock, par value (in dollars per share) | $ / shares			$ 0.0001
Preferred Stock convertible			0.4713
Preferred Stock, cumulative dividends rate (in percentage)			10.00%
Accumulated preferred stock, Dividends | $			$ 1.6	$ 1.3
Conversion of Series A Preferred stock to common shares			511,939
Additional common stock issuable upon conversion of remaining convertible shares			1,309,187
Cumulative accrued but unpaid dividends | $						$ 12.3
Per share average of cumulative preferred dividends (in dollars per share) | $ / shares			$ 4.4
Common Stock
Preferred Stock
Conversion of Series A Preferred stock to common shares			223,977	409,238	112,071