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 Class A common stock		$ (523)				$ (1)	(522)
Repurchase of Class A common 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	(13,349)
Balances at Sep. 30, 2021	224,677			$ 8,493	$ 27,356	$ 316	2,034,310	(1,845,798)
Balances (in shares) at Sep. 30, 2021				358,992	1,117,034	31,618,567
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 Class A common stock		(12,475)
Repurchase of Class A common stock (in shares)					0	(3,242,371)
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 Class A common stock		(3,490)				$ (9)	(3,481)
Repurchase of Class A common 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
Net loss	(250)							(250)
Issuance of Class A common stock under stock-based compensation plans (in shares)						19,694
Repurchase of Class A common stock under stock-based compensation plans	(79)						(79)
Repurchase of Class A common stock under stock-based compensation plans (in shares)						(21,085)
Repurchase of Class A common stock	(4,095)					$ (11)	(4,084)
Repurchase of Class A common stock (in shares)						(1,059,980)
Issuance of preferred stock	560			$ 560
Issuance of preferred stock (in shares)				22,719
Stock-based compensation	520						520
Dividends declared	(731)							(731)
Balances at Sep. 30, 2021	224,677			$ 8,493	$ 27,356	$ 316	2,034,310	(1,845,798)
Balances (in shares) at Sep. 30, 2021				358,992	1,117,034	31,618,567
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 Class A common stock		(3,497)				$ (10)	(3,487)
Repurchase of Class A common stock (in shares)						(1,009,566)
Issuance of preferred stock	149			$ 149
Issuance of preferred 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	1,037
Repurchase of Class A common stock		(8,232)			$ (3,389)
Repurchase of Class A common stock (in shares)					(152,211)	(2,429,493)
Balances at Sep. 30, 2022	214,210			$ 9,001	$ 23,967	$ 286	2,024,746	(1,843,790)
Balances (in shares) at Sep. 30, 2022				379,668	964,823	28,628,959
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 Class A common stock		(3,242)	$ (1,749)		$ (1,749)	$ (10)	(3,232)
Repurchase of Class A common 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
Net loss	3,431							3,431
Repurchase of Class A common stock under stock-based compensation plans	(30)						(30)
Repurchase of Class A common stock under stock-based compensation plans (in shares)						(11,058)
Repurchase of Class A common stock		$ (1,493)	$ (1,640)		$ (1,640)	$ (5)	(1,488)
Repurchase of Class A common stock (in shares)					(79,848)	(472,357)
Stock-based compensation	919						919
Dividends declared	(675)							(675)
Balances at Sep. 30, 2022	$ 214,210			$ 9,001	$ 23,967	$ 286	$ 2,024,746	$ (1,843,790)
Balances (in shares) at Sep. 30, 2022				379,668	964,823	28,628,959