6. INCOME TAXES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax expense:
Federal	$ 65,206	$ 69,367	$ 159,611
State	23,728	20,923	47,033
Total current tax expense	88,934	90,290	206,644
Deferred tax expense:
Federal	99,403	121,404	48,421
State	15,117	14,572	7,364
Total deferred tax expense	114,520	135,976	55,785
Total provision for income tax expense	$ 203,454	$ 226,266	$ 262,429