CONSOLIDATED STATEMENT OF CHANGES IN ACCUMULATED STOCKHOLDERS' DEFICIT - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at Dec. 31, 2018	$ 210	$ 380,395	$ (384,222)	$ (3,617)
Balance (in shares) at Dec. 31, 2018	21,034
Net income (loss)			(788)	(788)
Net distribution of common stock pursuant to restricted stock unit award plan	$ 3	12		15
Net distribution of common stock pursuant to restricted stock unit award plan (in shares)	266
Non-cash share-based compensation		29		29
Balance at Mar. 31, 2019	$ 213	380,436	(385,010)	(4,361)
Balance (in shares) at Mar. 31, 2019	21,300
Balance at Dec. 31, 2018	$ 210	380,395	(384,222)	(3,617)
Balance (in shares) at Dec. 31, 2018	21,034
Net income (loss)				(3,929)
Debt premium from debt modification				1,380
Issuance of warrant				1,150
Balance at Sep. 30, 2019	$ 213	383,021	(388,151)	(4,917)
Balance (in shares) at Sep. 30, 2019	21,300
Balance at Dec. 31, 2018	$ 210	380,395	(384,222)	(3,617)
Balance (in shares) at Dec. 31, 2018	21,034
Net income (loss)				(3,800)
Balance at Dec. 31, 2019	$ 213	383,042	(387,996)	(4,741)
Balance (in shares) at Dec. 31, 2019	21,300
Balance at Mar. 31, 2019	$ 213	380,436	(385,010)	(4,361)
Balance (in shares) at Mar. 31, 2019	21,300
Net income (loss)			(3,341)	(3,341)
Non-cash share-based compensation		29		29
Debt premium from debt modification		1,382		1,382
Issuance of warrant		1,145		1,145
Balance at Jun. 30, 2019	$ 213	382,992	(388,351)	(5,146)
Balance (in shares) at Jun. 30, 2019	21,300
Net income (loss)			200	200
Non-cash share-based compensation		29		29
Balance at Sep. 30, 2019	$ 213	383,021	(388,151)	(4,917)
Balance (in shares) at Sep. 30, 2019	21,300
Balance at Dec. 31, 2019	$ 213	383,042	(387,996)	(4,741)
Balance (in shares) at Dec. 31, 2019	21,300
Net income (loss)			(595)	(595)
Net distribution of common stock pursuant to restricted stock unit award plan	$ 3	19		22
Net distribution of common stock pursuant to restricted stock unit award plan (in shares)	350
Non-cash share-based compensation		9		9
Balance at Mar. 31, 2020	$ 216	383,070	(388,591)	(5,305)
Balance (in shares) at Mar. 31, 2020	21,650
Balance at Dec. 31, 2019	$ 213	383,042	(387,996)	(4,741)
Balance (in shares) at Dec. 31, 2019	21,300
Net income (loss)				(965)
Balance at Sep. 30, 2020	$ 216	383,088	(388,961)	(5,657)
Balance (in shares) at Sep. 30, 2020	21,650
Balance at Mar. 31, 2020	$ 216	383,070	(388,591)	(5,305)
Balance (in shares) at Mar. 31, 2020	21,650
Net income (loss)			308	308
Non-cash share-based compensation		9		9
Balance at Jun. 30, 2020	$ 216	383,079	(388,283)	(4,988)
Balance (in shares) at Jun. 30, 2020	21,650
Net income (loss)			(678)	(678)
Non-cash share-based compensation		9		9
Balance at Sep. 30, 2020	$ 216	$ 383,088	$ (388,961)	$ (5,657)
Balance (in shares) at Sep. 30, 2020	21,650