Segment Reporting (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Revenues      
Interest income $ 15,989 $ 15,504 $ 16,578
Gain on sale of loans 6,430 6,076 4,449
Other revenues 4,420 3,982 3,440
Total revenues 26,839 25,562 24,467
Expenses      
Interest expense 2,609 2,867 3,560
Salaries and benefits 11,295 10,846 10,685
Commissions 1,606 1,555 1,165
Other expenses 8,988 9,648 10,094
Total operating expenses 24,498 24,916 25,504
Income (loss) before income taxes 2,341 646 (1,037)
Total assets 444,802 419,941 434,004
Consolidation, Eliminations [Member]      
Revenues      
Interest income (117) (107) (56)
Gain on sale of loans 0 0 0
Other revenues (190) (240) (344)
Total revenues (307) (347) (400)
Expenses      
Interest expense (117) (117) (56)
Salaries and benefits 0 0 0
Commissions 0 0 0
Other expenses (190) (230) (344)
Total operating expenses (307) (347) (400)
Income (loss) before income taxes 0 0 0
Total assets (13,597) (14,903) (9,123)
Commercial and Industrial Sector [Member]      
Revenues      
Interest income 15,636 15,165 16,287
Gain on sale of loans 0 0 0
Other revenues 3,868 3,473 3,078
Total revenues 19,504 18,638 19,365
Expenses      
Interest expense 2,609 2,877 3,561
Salaries and benefits 7,702 7,346 7,454
Commissions 0 0 0
Other expenses 8,088 8,787 9,237
Total operating expenses 18,399 19,010 20,252
Income (loss) before income taxes 1,105 (372) (887)
Total assets 448,373 426,038 435,046
Mortgage Backed Securities, Other [Member]      
Revenues      
Interest income 470 446 347
Gain on sale of loans 6,430 6,076 4,449
Other revenues 742 749 706
Total revenues 7,642 7,271 5,502
Expenses      
Interest expense 117 107 55
Salaries and benefits 3,593 3,500 3,231
Commissions 1,606 1,555 1,165
Other expenses 1,090 1,091 1,201
Total operating expenses 6,406 6,253 5,652
Income (loss) before income taxes 1,236 1,018 (150)
Total assets $ 10,026 $ 8,806 $ 8,081