Fair Values of Assets and Liabilities (Assets and Liabilities Measured at Fair Value on Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Bank premises and equipment held for sale	$ 1,589	$ 1,589
Other real estate owned	4,486	4,527
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	3,795	3,020
Loans held for sale	396	501
Bank premises and equipment held for sale	1,589	1,589
Other real estate owned	4,486	4,527
Total assets at fair value	10,266	9,637
Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	396	501
Total assets at fair value	396	501
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	3,795	3,020
Bank premises and equipment held for sale	1,589	1,589
Other real estate owned	4,486	4,527
Total assets at fair value	$ 9,870	$ 9,136