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
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)
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)
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								240,000
Balance at Sep. 30, 2018	8,000	8,000	37,000	31,536,000	(1,090,000)	(34,468,000)	(208,000)	(4,177,000)
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
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	0	0	(70,000)	0	(70,000)
Exercise of stock options	0	0	1,000	84,000	0	0	0	85,000
Series A and B preferred stock dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	45,000	0	0	0	45,000
Other comprehensive (loss) income	0	0	0	0	(23,000)	0	0	(23,000)
Balance at Sep. 30, 2018	8,000	8,000	37,000	31,536,000	(1,090,000)	(34,468,000)	(208,000)	(4,177,000)
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)
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)
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								(2,020,000)
Balance at Sep. 30, 2019	8,000	8,000	37,000	31,342,000	(1,268,000)	(36,364,000)	(208,000)	(6,445,000)
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)
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	0	0	0	0	0	(1,489,000)	0	(1,489,000)
Exercise of stock options	0	0	0	85,000	0	0	0	85,000
Series A and B preferred stock dividends	0	0	0	(125,000)	0	0	0	(125,000)
Stock-based compensation	0	0	0	49,000	0	0	0	49,000
Other comprehensive (loss) income	0	0	0	0	44,000	0	0	44,000
Balance at Sep. 30, 2019	$ 8,000	$ 8,000	$ 37,000	$ 31,342,000	$ (1,268,000)	$ (36,364,000)	$ (208,000)	$ (6,445,000)

[1] Derived from audited financial statements.