CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Series A Preferred Stock	Common Stock	Paid-in Capital in Excess of Par Value	(Accumulated Deficit) Retained Earnings
Beginning Balance at Dec. 31, 2019	$ (102,490)		$ 944	$ (103,434)
Beginning Balance (in shares) at Dec. 31, 2019			94,447,356
Common stock awards under incentive plans	375			375
Common stock awards under incentive plans (in shares)			29,746
Net income (loss)	9,003				$ 9,003
Ending Balance at Mar. 31, 2020	(93,112)		$ 944	(103,059)	9,003
Ending Balance (in shares) at Mar. 31, 2020			94,477,102
Beginning Balance at Dec. 31, 2019	(102,490)		$ 944	(103,434)
Beginning Balance (in shares) at Dec. 31, 2019			94,447,356
Net income (loss)	5,089
Ending Balance at Jun. 30, 2020	(79,709)		$ 1,177	(85,975)	5,089
Ending Balance (in shares) at Jun. 30, 2020			117,794,520
Beginning Balance at Mar. 31, 2020	(93,112)		$ 944	(103,059)	9,003
Beginning Balance (in shares) at Mar. 31, 2020			94,477,102
Issuance of Series A Preferred Stock	8,800			8,800
Issuance of Series A Preferred Stock (in shares)		176
Exchange of Series A Preferred Stock for Common Stock			$ 121	(121)
Exchange of Series A Preferred Stock for Common Stock (in shares)		(176)	12,054,795
Issuance of Common stock	8,200		$ 112	8,088
Issuance of Common Stock (in shares)			11,232,877
Common stock awards under incentive plans	317			317
Common stock awards under incentive plans (in shares)			29,746
Net income (loss)	(3,914)				(3,914)
Ending Balance at Jun. 30, 2020	(79,709)		$ 1,177	(85,975)	5,089
Ending Balance (in shares) at Jun. 30, 2020			117,794,520
Beginning Balance at Dec. 31, 2020	(92,413)		$ 1,178	(85,232)	(8,359)
Beginning Balance (in shares) at Dec. 31, 2020			117,871,141
Common stock awards under incentive plans	505		$ 1	504
Common stock awards under incentive plans (in shares)			46,875
Net income (loss)	(4,624)				(4,624)
Ending Balance at Mar. 31, 2021	(96,532)		$ 1,179	(84,728)	(12,983)
Ending Balance (in shares) at Mar. 31, 2021			117,918,016
Beginning Balance at Dec. 31, 2020	(92,413)		$ 1,178	(85,232)	(8,359)
Beginning Balance (in shares) at Dec. 31, 2020			117,871,141
Net income (loss)	(40,009)
Ending Balance at Jun. 30, 2021	(131,409)		$ 1,180	(84,221)	(48,368)
Ending Balance (in shares) at Jun. 30, 2021			117,964,891
Beginning Balance at Mar. 31, 2021	(96,532)		$ 1,179	(84,728)	(12,983)
Beginning Balance (in shares) at Mar. 31, 2021			117,918,016
Common stock awards under incentive plans	508		$ 1	507
Common stock awards under incentive plans (in shares)			46,875
Net income (loss)	(35,385)				(35,385)
Ending Balance at Jun. 30, 2021	$ (131,409)		$ 1,180	$ (84,221)	$ (48,368)
Ending Balance (in shares) at Jun. 30, 2021			117,964,891