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Loans and Allowance for Loan Losses - Summary of Aging of Loans (Detail) - USD ($)
$ in Thousands

Dec. 31, 2020

Dec. 31, 2019

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

$ 40,541

$ 60,413

Current

1,165,235

1,076,281

Total

1,205,776

^[1]

1,136,694

^[2]

Accruing

0

0

30-59 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

24,890

40,779

60-89 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

8,773

10,971

91+ [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

6,878

8,663

Recreation [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

34,983

41,583

Current

732,391

648,227

Total

767,374

^[1]

689,810

^[2]

Accruing

0

0

Recreation [Member] | 30-59 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

22,058

27,357

Recreation [Member] | 60-89 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

7,582

8,426

Recreation [Member] | 91+ [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

5,343

5,800

Home Improvement [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

1,201

1,542

Current

335,684

249,288

Total

336,885

^[1]

250,830

^[2]

Accruing

0

0

Home Improvement [Member] | 30-59 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

813

931

Home Improvement [Member] | 60-89 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

218

427

Home Improvement [Member] | 91+ [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

170

184

Commercial Loans [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

75

107

Current

65,265

69,660

Total

65,340

^[1]

69,767

^[2]

Accruing

0

0

Commercial Loans [Member] | 91+ [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

75

107

Medallion [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

4,282

17,181

Current

31,871

109,106

Total

36,153

^[1]

126,287

^[2]

Accruing

0

0

Medallion [Member] | 30-59 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

2,019

12,491

Medallion [Member] | 60-89 [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

973

2,118

Medallion [Member] | 91+ [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Past Due

1,290

$ 2,572

Strategic Partnership [Member]

Financing Receivable Recorded Investment Past Due [Line Items]

Current

24

Total

^[1]

24

Accruing

$ 0

[1]	Excludes loan premiums of $2,717 resulting from purchase price accounting and $21,345 of capitalized loan origination costs.
[2]	Excludes loan premiums of $5,758 resulting from purchase price accounting and $18,403 of capitalized loan origination costs.

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