Accounting for Certain Loans Acquired in a Transfer (Schedule of Acquired Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Total loans receivable	$ 1,503,936	$ 1,497,256	$ 1,452,461
Universal Bancorp [Member]
Loans acquired	176,337	179,968
Carrying amount, gross	173,796	177,169
Allowance	(173,796)	(177,169)
Carrying amount net of allowance	173,796	177,169
Commercial Real Estate [Member]
Total loans receivable	482,627	485,808
Real estate [Member]
Total loans receivable	1,074,854	1,080,729
Real estate [Member] \| Universal Bancorp [Member]
Loans acquired	164,916	167,639
Real estate [Member] \| Commercial Real Estate [Member] \| Universal Bancorp [Member]
Loans acquired	116,667	120,249
Other [Member]
Total loans receivable	429,082	416,527
Other [Member] \| Universal Bancorp [Member]
Loans acquired	11,421	12,329
Construction Loans [Member] \| Commercial Segment [Member]
Total loans receivable	60,383	53,310
Construction Loans [Member] \| Real estate [Member] \| Commercial Segment [Member] \| Universal Bancorp [Member]
Loans acquired	11,286	8,664
First Mortgage [Member] \| Consumer [Member]
Total loans receivable	458,498	464,539
First Mortgage [Member] \| Real estate [Member] \| Consumer [Member] \| Universal Bancorp [Member]
Loans acquired	29,316	30,694
Second Mortgage [Member] \| Consumer [Member]
Total loans receivable	73,346	77,072
Second Mortgage [Member] \| Real estate [Member] \| Consumer [Member] \| Universal Bancorp [Member]
Loans acquired	7,647	8,032
Automobile Loan [Member] \| Consumer [Member]
Total loans receivable	52,496	43,667
Automobile Loan [Member] \| Other [Member] \| Consumer [Member] \| Universal Bancorp [Member]
Loans acquired	987	1,138
Boat/RVs [Member] \| Consumer [Member]
Total loans receivable	218,175	216,608
Boat/RVs [Member] \| Other [Member] \| Consumer [Member] \| Universal Bancorp [Member]
Loans acquired	58	97
Other [Member] \| Consumer [Member]
Total loans receivable	6,615	6,893
Other [Member] \| Other [Member] \| Consumer [Member] \| Universal Bancorp [Member]
Loans acquired	455	523
Commercial and Industrial [Member] \| Commercial Segment [Member]
Total loans receivable	151,796	149,359
Commercial and Industrial [Member] \| Other [Member] \| Commercial Segment [Member] \| Universal Bancorp [Member]
Loans acquired	$ 9,921	$ 10,571

Certain loans acquired in transfer not accounted for as debt securities carrying amount gross.

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- Definition

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

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- Definition

The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

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