Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances	$ (6,618,000)	$ (6,394,000)
Actuarial loss	(755,000)	(342,000)
Translation gain	51,000	118,000
Balances	(7,322,000)	(6,618,000)
Pension Plan Acturial Loss Gain [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances	(6,812,000)	(6,470,000)
Actuarial loss	(755,000)	(342,000)
Translation gain
Balances	(7,567,000)	(6,812,000)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances	194,000	76,000
Actuarial loss
Translation gain	51,000	118,000
Balances	$ 245,000	$ 194,000