CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Class A	Preferred Stock	Preferred Stock Series B Preferred Stock	Preferred Stock Series C Preferred Stock	Common Stock Common Class A	Additional Paid-in Capital	Accumulated Deficit
Balances at Dec. 31, 2020	$ 246,270			$ 7,933	$ 27,356	$ 335	$ 2,040,918	$ (1,830,272)
Balances (in shares) at Dec. 31, 2020				336,273	1,117,034	33,517,018
Net loss	(6,040)							(6,040)
Issuance of Class A common stock under stock-based compensation plans						$ 1	(1)
Issuance of Class A common stock under stock-based compensation plans (in shares)						101,818
Repurchase of stock		$ (523)				$ (1)	(522)
Repurchase of stock (in shares)						137,655
Stock-based compensation	503						503
Dividends declared	(723)							(723)
Balances at Mar. 31, 2021	239,487			$ 7,933	$ 27,356	$ 335	2,040,898	(1,837,035)
Balances (in shares) at Mar. 31, 2021				336,273	1,117,034	33,481,181
Balances at Dec. 31, 2020	246,270			$ 7,933	$ 27,356	$ 335	2,040,918	(1,830,272)
Balances (in shares) at Dec. 31, 2020				336,273	1,117,034	33,517,018
Net loss	(13,099)
Balances at Jun. 30, 2021	228,752			$ 7,933	$ 27,356	$ 327	2,037,953	(1,844,817)
Balances (in shares) at Jun. 30, 2021				336,273	1,117,034	32,679,938
Balances at Dec. 31, 2020	246,270			$ 7,933	$ 27,356	$ 335	2,040,918	(1,830,272)
Balances (in shares) at Dec. 31, 2020				336,273	1,117,034	33,517,018
Repurchase of stock		(12,475)
Repurchase of stock (in shares)					0	(3,242,371,000)
Balances at Dec. 31, 2021	224,127			$ 8,852	$ 27,356	$ 307	2,030,315	(1,842,703)
Balances (in shares) at Dec. 31, 2021				373,610	1,117,034	30,676,931
Balances at Mar. 31, 2021	239,487			$ 7,933	$ 27,356	$ 335	2,040,898	(1,837,035)
Balances (in shares) at Mar. 31, 2021				336,273	1,117,034	33,481,181
Net loss	(7,059)							(7,059)
Issuance of Class A common stock under stock-based compensation plans						$ 1	(1)
Issuance of Class A common stock under stock-based compensation plans (in shares)						76,592
Forfeiture of Class A common stock under stock-based compensation plans (in shares)						(22,000)
Repurchase of stock		(3,490)				$ (9)	(3,481)
Repurchase of stock (in shares)						(855,835)
Stock-based compensation	537						537
Dividends declared	(723)							(723)
Balances at Jun. 30, 2021	228,752			$ 7,933	$ 27,356	$ 327	2,037,953	(1,844,817)
Balances (in shares) at Jun. 30, 2021				336,273	1,117,034	32,679,938
Balances at Dec. 31, 2021	224,127			$ 8,852	$ 27,356	$ 307	2,030,315	(1,842,703)
Balances (in shares) at Dec. 31, 2021				373,610	1,117,034	30,676,931
Net loss	(2,701)							(2,701)
Issuance of Class A common stock under stock-based compensation plans						$ 4	(4)
Issuance of Class A common stock under stock-based compensation plans (in shares)						404,746
Forfeiture of Class A common stock under stock-based compensation plans (in shares)						(12,167)
Repurchase of stock		(3,497)				$ (10)	(3,487)
Repurchase of stock (in shares)						(1,009,566)
Issuance of preferred stock	149			$ 149
Issuance of stock (in shares)				6,058
Stock-based compensation	761						761
Dividends declared	(742)							(742)
Balances at Mar. 31, 2022	218,097			$ 9,001	$ 27,356	$ 301	2,027,585	(1,846,146)
Balances (in shares) at Mar. 31, 2022				379,668	1,117,034	30,059,944
Balances at Dec. 31, 2021	224,127			$ 8,852	$ 27,356	$ 307	2,030,315	(1,842,703)
Balances (in shares) at Dec. 31, 2021				373,610	1,117,034	30,676,931
Net loss	(2,394)
Repurchase of stock		(6,739)			$ (1,749)
Repurchase of stock (in shares)					(72,363)	(1,957,136)
Balances at Jun. 30, 2022	213,698			$ 9,001	$ 25,607	$ 291	2,025,345	(1,846,546)
Balances (in shares) at Jun. 30, 2022				379,668	1,044,671	29,112,374
Balances at Mar. 31, 2022	218,097			$ 9,001	$ 27,356	$ 301	2,027,585	(1,846,146)
Balances (in shares) at Mar. 31, 2022				379,668	1,117,034	30,059,944
Net loss	307							307
Repurchase of stock		$ (3,242)	$ 1,749		$ (1,749)	$ (10)	(3,232)
Repurchase of stock (in shares)					(72,363)	(947,570)
Stock-based compensation	992						992
Dividends declared	(707)							(707)
Balances at Jun. 30, 2022	$ 213,698			$ 9,001	$ 25,607	$ 291	$ 2,025,345	$ (1,846,546)
Balances (in shares) at Jun. 30, 2022				379,668	1,044,671	29,112,374