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 (loss) 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) income	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, 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 (loss) income								310,000
Ending Balance at Jun. 30, 2018	8,000	8,000	36,000	31,532,000	(1,067,000)	(34,398,000)	(208,000)	(4,089,000)
Beginning 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	0	0	304,000	0	304,000
Series A and B preferred stock Dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	41,000	0	0	0	41,000
Other comprehensive (loss) income	0	0	0	0	92,000	0	0	92,000
Ending Balance at Jun. 30, 2018	8,000	8,000	36,000	31,532,000	(1,067,000)	(34,398,000)	(208,000)	(4,089,000)
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 (loss) 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) income	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)
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 (loss) income								(531,000)
Ending Balance at Jun. 30, 2019	8,000	8,000	37,000	31,333,000	(1,312,000)	(34,875,000)	(208,000)	(5,009,000)
Beginning 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	0	0	(586,000)	0	(586,000)
Exercise of stock options	0	0	0	59,000	0	0	0	59,000
Series A and B preferred stock Dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	52,000	0	0	0	52,000
Other comprehensive (loss) income	0	0	0	0	(116,000)	0	0	(116,000)
Ending Balance at Jun. 30, 2019	$ 8,000	$ 8,000	$ 37,000	$ 31,333,000	$ (1,312,000)	$ (34,875,000)	$ (208,000)	$ (5,009,000)

[1] Derived from audited financial statements.