Taxes on Income (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Jun. 26, 2012
Taxes on Income (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	34.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 1,700,000	$ 1,700,000
Dividends	3,200,000	3,300,000
Increase Decrease In Dividends	155,000
Deferred Refundable AMT Credits	777,000
Deferred Refundable AMT Credits, Remaining Amount	592,000	611,000
Operating Loss Carryforwards	712,000		$ 295,000
Federal Income Tax Expense (Benefit), Continuing Operations	513,000
State and Local Income Tax Expense (Benefit), Continuing Operations	199,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic	4,500,000	3,500,000
Deferred Tax Assets, Operating Loss Carryforwards	5,347,000	4,663,000
Domestic Tax Authority [Member]
Taxes on Income (Details) [Line Items]
Operating Loss Carryforwards	18,900,000
CANADA
Taxes on Income (Details) [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Foreign	$ 100,000	$ 100,000
Before December 22, 2017 [Member]
Taxes on Income (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
After December 22, 2017 [Member]
Taxes on Income (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%