Loans (Loan Receivable and Allowance Balances Disaggregated) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Loan receivables:
Ending balance: individually evaluated for impairment	$ 30,579	$ 36,880		$ 35,987
Ending balance: collectively evaluated for impairment	1,329,370	1,306,822		1,239,797
Total Loan Receivables	1,363,176	1,346,922		1,279,655
Allowance for loan losses:
Ending balance: individually evaluated for impairment	1,058	1,180		1,161
Ending balance: collectively evaluated for impairment	9,788	9,796		9,310
Total Allowance for loan losses	10,846	10,976	$ 10,976	10,471	$ 10,515
Commercial Real Estate Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	22,293	27,540		26,906
Ending balance: collectively evaluated for impairment	867,122	848,691		789,133
Total Loan Receivables	891,165	878,016		817,576
Allowance for loan losses:
Ending balance: individually evaluated for impairment	208	326		290
Ending balance: collectively evaluated for impairment	6,534	6,556		6,374
Total Allowance for loan losses	6,742	6,882	6,882	6,664	6,451
Residential First Mortgages Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	2,505	2,527		2,370
Ending balance: collectively evaluated for impairment	153,680	153,716		164,020
Total Loan Receivables	156,653	156,709		166,390
Allowance for loan losses:
Ending balance: individually evaluated for impairment				2
Ending balance: collectively evaluated for impairment	722	755		935
Total Allowance for loan losses	722	755	755	937	1,144
Residential Rentals Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	1,768	1,745		1,401
Ending balance: collectively evaluated for impairment	121,864	121,656		125,869
Total Loan Receivables	124,518	124,298		129,026
Allowance for loan losses:
Ending balance: collectively evaluated for impairment	462	498		459
Total Allowance for loan losses	462	498	498	459	512
Construction And Land Development Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	729	729		729
Ending balance: collectively evaluated for impairment	32,069	28,976		27,387
Total Loan Receivables	32,798	29,705		28,226
Allowance for loan losses:
Ending balance: individually evaluated for impairment				210
Ending balance: collectively evaluated for impairment	148	310		272
Total Allowance for loan losses	148	310	310	482	462
Home Equity And Second Mortgage Loans [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	250	288		306
Ending balance: collectively evaluated for impairment	36,373	35,201		38,707
Total Loan Receivables	36,746	35,561		39,481
Allowance for loan losses:
Ending balance: collectively evaluated for impairment	132	133		118
Total Allowance for loan losses	132	133	133	118	162
Commercial Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	2,661	2,751		2,950
Ending balance: collectively evaluated for impairment	68,064	68,929		49,248
Total Loan Receivables	70,725	71,680		52,198
Allowance for loan losses:
Ending balance: individually evaluated for impairment	700	700		419
Ending balance: collectively evaluated for impairment	706	782		626
Total Allowance for loan losses	1,406	1,482	1,482	1,045	1,013
Consumer Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment		1		1
Ending balance: collectively evaluated for impairment	851	750		852
Total Loan Receivables	851	751		853
Allowance for loan losses:
Ending balance: individually evaluated for impairment		1		1
Ending balance: collectively evaluated for impairment	8	5		6
Total Allowance for loan losses	8	6	6	7	7
Commercial Equipment Portfolio Segment [Member]
Loan receivables:
Ending balance: individually evaluated for impairment	373	1,299		1,324
Ending balance: collectively evaluated for impairment	49,347	48,903		44,581
Total Loan Receivables	49,720	50,202		45,905
Allowance for loan losses:
Ending balance: individually evaluated for impairment	150	153		239
Ending balance: collectively evaluated for impairment	1,076	757		520
Total Allowance for loan losses	1,226	910	$ 910	759	$ 764
PCI Loans [Member]
Loan receivables:
Total Loan Receivables	3,227	3,220		3,871
PCI Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	1,750	1,785		1,537
PCI Loans [Member] | Residential First Mortgages Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	468	466
PCI Loans [Member] | Residential Rentals Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	886	897		1,756
PCI Loans [Member] | Construction And Land Development Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables				110
PCI Loans [Member] | Home Equity And Second Mortgage Loans [Member]
Loan receivables:
Total Loan Receivables	123	72		$ 468
All Other Loans [Member]
Loan receivables:
Total Loan Receivables	1,359,949	1,343,702
All Other Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	889,415	876,231
All Other Loans [Member] | Residential First Mortgages Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	156,185	156,243
All Other Loans [Member] | Residential Rentals Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	123,632	123,401
All Other Loans [Member] | Construction And Land Development Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	32,798	29,705
All Other Loans [Member] | Commercial Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	70,725	71,680
All Other Loans [Member] | Consumer Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	851	751
All Other Loans [Member] | Commercial Equipment Portfolio Segment [Member]
Loan receivables:
Total Loan Receivables	$ 49,720	$ 50,202