Consolidated Statements of Shareholders' Equity (Deficit) - USD ($)	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Noncontrolling Interest [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Class B Preferred Units [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Preferred Stock [Member] Series A Preferred Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Class B Preferred Units [Member]	Preferred Stock [Member] Series A Preferred Stock [Member]	Total
Balance (in shares) at Dec. 31, 2018									15,563,574
Balance at Dec. 31, 2018				$ 555,000				$ 555,000		$ 213,435,000	$ 3,558,000	$ (238,784,000)	$ (338,000)			$ (22,129,000)
Accretion of discount associated with issuance of subsidiary equity										(50,000)				50,000		(50,000)
Preferred dividends										(1,103,000)						(1,103,000)
Stock option exercises and proceeds related thereto (in shares)									469,701
Stock option exercises and proceeds related thereto										1,215,000						1,215,000
Compensatory stock issuances, net of forfeitures (in shares)									209,500
Compensatory stock issuances, net of forfeitures
Contributions by preferred shareholders														50,500,000	40,000,000
Costs associated with contributions by preferred shareholders														(1,500,000)
Deferred stock-based compensation costs										1,712,000						$ 1,712,000
Redemption and retirement of shares (in shares)									(357,461)							(357,461)
Redemption and retirement of shares										(2,517,000)						$ (2,517,000)
Comprehensive income (loss)											(3,558,000)	26,443,000	(233,000)			22,652,000
Balance (in shares) at Dec. 31, 2019									15,885,314
Balance at Dec. 31, 2019										212,692,000		(211,786,000)	(571,000)	49,050,000	40,000,000	335,000
Accretion of discount associated with issuance of subsidiary equity										(300,000)				300,000		(300,000)
Preferred dividends										(16,770,000)						$ (16,770,000)
Stock option exercises and proceeds related thereto (in shares)									407,533							407,533
Stock option exercises and proceeds related thereto										1,326,000						$ 1,326,000
Compensatory stock issuances, net of forfeitures (in shares)									68,040
Compensatory stock issuances, net of forfeitures
Contributions by preferred shareholders														50,000,000
Deferred stock-based compensation costs										1,355,000						$ 1,355,000
Redemption and retirement of shares (in shares)									(245,534)							(245,534)
Redemption and retirement of shares										(3,353,000)						$ (3,353,000)
Comprehensive income (loss)												94,120,000	(203,000)			93,917,000
Balance (in shares) at Dec. 31, 2020									16,115,353
Balance at Dec. 31, 2020										$ 194,950,000		$ (117,666,000)	$ (774,000)	$ 99,350,000	$ 40,000,000	$ 76,510,000