CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT (Unaudited) - USD ($)	Preferred Stock [Member] Series A Convertible Preferred Stock [Member]	Preferred Stock [Member] Series B Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In-Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect from change in accounting	$ 0	$ 0	$ 0	$ 0	$ 0	$ 630,000	$ 0	$ 630,000
Beginning Balance at Dec. 31, 2017	8,000	8,000	36,000	31,710,000	(1,055,000)	(35,338,000)	(208,000)	(4,839,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	0	6,000	0	6,000
Series A and B preferred stock dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	31,000	0	0	0	31,000
Other comprehensive loss	0	0	0	0	(104,000)	0	0	(104,000)
Ending Balance at Mar. 31, 2018	8,000	8,000	36,000	31,616,000	(1,159,000)	(34,702,000)	(208,000)	(4,401,000)
Beginning Balance at Dec. 31, 2018	8,000	8,000	37,000	31,455,000	(1,150,000)	(34,344,000)	(208,000)	(4,194,000)	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	0	0	0	0	0	55,000	0	55,000
Series A and B preferred stock dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	17,000	0	0	0	17,000
Other comprehensive loss	0	0	0	0	(46,000)	0	0	(46,000)
Ending Balance at Mar. 31, 2019	$ 8,000	$ 8,000	$ 37,000	$ 31,347,000	$ (1,196,000)	$ (34,289,000)	$ (208,000)	$ (4,293,000)

[1] Derived from audited financial statements.