5. FAIR VALUE MEASUREMENTS - Carrying amounts and estimated fair values (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financial assets:
Cash and due from banks	$ 22,984	$ 19,348
Federal funds sold	124,640	38,135
Time deposits at other financial institutions	2,226	2,226
FHLB, FRB and other securities		0
Available-for-sale securities	213,696	279,479
Held-to-maturity securities	2	2
Loans	510,476	510,611
Accrued interest receivable	1,847	2,124
Financial liabilities:
Nonmaturity deposits	659,549	638,112
Time deposits	138,472	149,899
Subordinated debentures	8,198	7,702
Accrued interest payable	106	108
Level 1
Financial assets:
Cash and due from banks	22,984	19,348
Federal funds sold	124,640	38,135
Time deposits at other financial institutions	0	0
FHLB, FRB and other securities	0	0
Available-for-sale securities	0	0
Held-to-maturity securities	0	0
Loans	0	0
Accrued interest receivable	0	0
Financial liabilities:
Nonmaturity deposits	659,549	638,112
Time deposits	0	0
Subordinated debentures	0	0
Accrued interest payable	2	2
Level 2
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0	0
Time deposits at other financial institutions	2,226	2,226
FHLB, FRB and other securities	0	0
Available-for-sale securities	213,696	279,479
Held-to-maturity securities	2	2
Accrued interest receivable	490	692
Financial liabilities:
Nonmaturity deposits	0	0
Time deposits	138,472	149,899
Subordinated debentures	0	0
Accrued interest payable	28	29
Level 3
Financial assets:
Cash and due from banks	0	0
Federal funds sold	0	0
Time deposits at other financial institutions	0	0
FHLB, FRB and other securities	0	0
Available-for-sale securities	0	0
Held-to-maturity securities	0	0
Loans	510,476	510,611
Accrued interest receivable	1,357	1,432
Financial liabilities:
Nonmaturity deposits	0	0
Time deposits	0	0
Subordinated debentures	8,198	7,702
Accrued interest payable	76	77
Carrying Amount
Financial assets:
Cash and due from banks	22,984	19,348
Federal funds sold	124,640	38,135
Time deposits at other financial institutions	2,226	2,226
FHLB, FRB and other securities	8,576	8,402
Available-for-sale securities	213,696	279,479
Held-to-maturity securities	2	2
Loans	497,591	499,943
Accrued interest receivable	1,847	2,124
Financial liabilities:
Nonmaturity deposits	659,549	638,112
Time deposits	138,443	149,737
Subordinated debentures	21,651	21,651
Accrued interest payable	$ 106	$ 108