A clause stipulated in the contract of an adjustable-rate mortgage (ARM) that limits the possible increase in the loan's interest rate to a certain amount each year. The cap is usually defined in terms of rate, but the dollar amount of the principal and interest payment can be capped as well. Annual caps are designed to protect borrowers against a sudden and excessive increase in the amount of their monthly payments when rates rise sharply over a short period of time.

No definition available.

CREDIT DISCLSOURES - Narrative and Additional Information (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of specific allowance for losses		100.00%
Maturity period of fixed rate loans		30 years
Annual cap of ARM loans		2.00%
Lifetime cap of ARM loans		6.00%
Loans and Leases Receivable, Net Amount		$ 1,575,344,000	$ 1,317,837,000
Increase finance receivables		(19,600,000)
Total past due		$ 25,519,000	45,061,000
1-4 Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of loans receivable		30 years
Total past due		$ 214,000	449,000
Commercial and Multi-Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio		80.00%
Maturity period of fixed rate loans		20 years
Total past due		$ 0	685,000
Commercial Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		$ 0	0
Agricultural Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of loans receivable		1 year
Increase finance receivables		$ 7,000,000
Total past due		$ 0	97,000
Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Typical period of delinquency		89 days
Total past due		$ 0	34,198,000
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of fixed rate loans		5 years
Total past due		$ 19,964,000	4,476,000
Commercial Insurance Premium Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of delay or shortfall in payments after which a loan is evaluated for impairment		210 days
Typical period of delinquency		210 days
Total past due		$ 5,341,000	5,156,000
Tax and Other National Lending [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of delay or shortfall in payments after which a loan is evaluated for impairment		180 days
Non-Premium Finance Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of delay or shortfall in payments after which a loan is evaluated for impairment		90 days
Maximum [Member] \| 1-4 Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio		100.00%
Exposure of the entity expressed in loan to value ratio		80.00%
Maximum [Member] \| Commercial and Multi-Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of loans receivable		1 year
Percentage value for securing the loan		80.00%
Maximum [Member] \| Commercial Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of loans receivable		1 year
Maximum [Member] \| Agricultural Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of fixed rate loans		7 years
Maximum [Member] \| Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of fixed rate loans		10 years
Period of amortization, loans		25 years
Percentage value for securing the loan		75.00%
Maximum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage value for securing the loan		90.00%
Maximum [Member] \| Automobile Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of loans receivable		60 months
Percentage value for securing the loan		80.00%
Maximum [Member] \| Commercial Insurance Premium Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of down payment		25.00%
Period of finance		10 months
Period of conversion of collateral into cash		210 days
Minimum [Member] \| Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maturity period of fixed rate loans		5 years
Period of amortization, loans		20 years
Minimum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provsion for Loan and Lease Losses, Percent		1.00%
Minimum [Member] \| Commercial Insurance Premium Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of down payment		20.00%
Period of finance		9 months
Period of conversion of collateral into cash		60 days
Typical period of delinquency		90 days
Financing Receivables, Equal to Greater than 210 Days Past Due [Member] \| Commercial Insurance Premium Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		$ 1,600,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase finance receivables		(31,600,000)
Total past due		5,729,000	37,296,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| 1-4 Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		214,000	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial and Multi-Family Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		0	390,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Agricultural Operating [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		0	97,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Agricultural Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		0	34,198,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		1,846,000	1,406,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Insurance Premium Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total past due		3,669,000	$ 1,205,000
Closed-end Installment Loans [Member] \| LIberty Lending [Member] \| Maximum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net Amount		3,500
Period of finance	13 months
Closed-end Installment Loans [Member] \| LIberty Lending [Member] \| Minimum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Net Amount		$ 45,000
Period of finance	60 months
Closed-end Installment Loans [Member] \| Health Credit Services [Member] \| Maximum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of finance	12 months
Closed-end Installment Loans [Member] \| Health Credit Services [Member] \| Minimum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of finance	84 months
Revolving Credit Facility [Member] \| Health Credit Services [Member] \| Maximum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of finance	6 months
Revolving Credit Facility [Member] \| Health Credit Services [Member] \| Minimum [Member] \| Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Period of finance	60 months