Management's Statement (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease - right of use assets	$ 5,331
Operating lease liabilities	5,537
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 3,390
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease - right of use assets		$ 3,100
Operating lease liabilities		3,200
Accrued Rent Receivable		4,500
Cumulative Effect of New Accounting Principle in Period of Adoption		$ 3,400