4. Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Construction/Land Development	$ 70,648	$ 68,512
Farmland	12,532	13,197
Real Estate	155,774	154,628
Multi-Family	11,693	11,797
Commercial Real Estate	116,583	113,415
Home Equity - closed end	9,451	10,228
Home Equity - open end	47,187	47,358
Commercial & Industrial (Non-Real Estate)	25,953	25,903
Total	449,821	445,038
Grade 1 Minimal Risk [Member]
Construction/Land Development
Farmland	68	69
Real Estate
Multi-Family
Commercial Real Estate
Home Equity - closed end
Home Equity - open end
Commercial & Industrial (Non-Real Estate)	777	815
Total	845	884
Grade 2 Modest Risk [Member]
Construction/Land Development
Farmland
Real Estate	555	562
Multi-Family	649	668
Commercial Real Estate	1,554	1,897
Home Equity - closed end
Home Equity - open end	1,574	1,482
Commercial & Industrial (Non-Real Estate)	120	92
Total	4,452	4,701
Grade 3 Average Risk [Member]
Construction/Land Development	5,734	3,166
Farmland	1,358	1,406
Real Estate	68,256	68,241
Multi-Family	4,382	4,442
Commercial Real Estate	23,899	18,062
Home Equity - closed end	4,483	4,574
Home Equity - open end	12,861	13,308
Commercial & Industrial (Non-Real Estate)	4,272	3,631
Total	125,245	116,830
Grade 4 Acceptable Risk [Member]
Construction/Land Development	25,374	25,657
Farmland	4,103	5,206
Real Estate	52,815	52,190
Multi-Family	2,041	2,275
Commercial Real Estate	56,142	55,350
Home Equity - closed end	3,064	3,117
Home Equity - open end	26,189	26,734
Commercial & Industrial (Non-Real Estate)	15,165	16,265
Total	184,893	186,794
Grade 5 Marginally Acceptable [Member]
Construction/Land Development	11,206	11,116
Farmland	5,449	4,816
Real Estate	19,864	19,037
Multi-Family	4,621	4,412
Commercial Real Estate	20,577	21,677
Home Equity - closed end	1,418	1,870
Home Equity - open end	5,756	4,840
Commercial & Industrial (Non-Real Estate)	2,936	3,108
Total	71,827	70,876
Grade 6 Watch [Member]
Construction/Land Development	1,257	2,946
Farmland		143
Real Estate	6,066	7,821
Multi-Family
Commercial Real Estate	12,241	13,406
Home Equity - closed end	246	281
Home Equity - open end	306	327
Commercial & Industrial (Non-Real Estate)	2,454	1,516
Total	22,570	26,440
Grade 7 Substandard [Member]
Construction/Land Development	27,077	25,627
Farmland	1,554	1,557
Real Estate	8,218	6,777
Multi-Family
Commercial Real Estate	2,170	3,023
Home Equity - closed end	240	386
Home Equity - open end	501	667
Commercial & Industrial (Non-Real Estate)	229	476
Total	39,989	38,513
Grade 8 Doubtful [Member]
Construction/Land Development
Farmland
Real Estate
Multi-Family
Commercial Real Estate
Home Equity - closed end
Home Equity - open end
Commercial & Industrial (Non-Real Estate)
Total