Consolidated Statements of Changes in Stockholders' Deficit - USD ($) shares in Thousands	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance, beginning of year and end of year (in shares)	949	12,471
Balance, beginning of year and end of year	$ 1,843,000	$ 125,000		$ 56,382,000	$ (58,698,000)
Total stockholders’ deficit	$ 1,843,000	$ 125,000		56,382,000	(58,698,000)
Balance, beginning of year (in shares) at Dec. 31, 2014	949	12,471
Conversion of preferred stock to common (in shares)
Balance, end of year (in shares) at Dec. 31, 2015	949	12,622	(362)
Balance, beginning of year and end of year at Dec. 31, 2014	$ 1,843,000	$ 125,000		56,382,000	(58,698,000)
Conversion of preferred stock to common
Balance, end of year at Dec. 31, 2015	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	$ (107,000)	$ (1,927,000)
Exercise of stock options (in shares)		151					150
Exercise of stock options		$ 1,000		66,000
Balance, beginning of year and end of year (in shares)	949	12,622	(362)
Stock-based compensation				206,000
Preferred stock dividends declared, net of waived penalties by shareholders				(134,000)			$ (160,000)
Net loss					(1,249,000)		(1,249,000)
Balance, beginning of year and end of year	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(1,927,000)
Total stockholders’ deficit	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(1,927,000)
Balance, beginning of year and end of year (in shares)	949	12,622	(362)
Balance, beginning of year and end of year	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(1,927,000)
Total stockholders’ deficit	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(1,927,000)
Conversion of preferred stock to common (in shares)
Balance, end of year (in shares) at Dec. 31, 2016	949	12,758	(362)
Conversion of preferred stock to common
Balance, end of year at Dec. 31, 2016	$ 1,843,000	$ 128,000		56,595,000	(61,499,000)	(107,000)	$ (3,402,000)
Exercise of stock options (in shares)		136					136
Exercise of stock options		$ 2,000		98,000
Balance, beginning of year and end of year (in shares)	949	12,622	(362)
Stock-based compensation				96,000
Preferred stock dividends declared, net of waived penalties by shareholders				(119,000)			$ (139,000)
Net loss					(1,552,000)		(1,552,000)
Balance, beginning of year and end of year	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(3,402,000)
Total stockholders’ deficit	$ 1,843,000	$ 126,000		56,520,000	(59,947,000)	(107,000)	(3,402,000)
Balance, beginning of year and end of year (in shares)	949	12,758	(362)
Balance, beginning of year and end of year	$ 1,843,000	$ 128,000		56,595,000	(61,499,000)	(107,000)	(3,402,000)
Total stockholders’ deficit	$ 1,843,000	$ 128,000		$ 56,595,000	$ (61,499,000)	$ (107,000)	$ (3,402,000)