INCOME TAXES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current taxes [Abstract]
Federal	$ 4,428,345	$ 1,939,831	$ 2,724,597
State	49,185	17,872	25,491
Total current taxes	4,477,530	1,957,703	2,750,088
Deferred taxes [Abstract]
Federal	452,760	425,126	(68,296)
State	3,038	3,878	3,024
Total deferred taxes	455,798	429,004	(65,272)
Total provision for income taxes	$ 4,933,328	$ 2,386,707	$ 2,684,816
Effective income tax rate differs from federal statutory tax rate [Abstract]
Statutory rate	34.00%	34.00%	34.00%
State income taxes, net of federal income tax benefit	0.25%	0.17%	0.21%
Stock-based compensation	(0.46%)	(0.40%)	0.11%
Miscellaneous other, net	0.11%	0.17%	(0.64%)
Effective tax rate (benefit)	33.90%	33.94%	33.68%
Deferred tax assets [Abstract]
Deferred revenue	$ 33,823	$ 50,722	$ 71,062
Other	98,744	96,501	71,305
Options	490,405	931,548	1,365,409
Net deferred tax asset	622,972	$ 1,078,771	$ 1,507,776
Tax benefit from stock options exercised	3,800,000
Income Tax Contingency [Line Items]
Uncertain tax positions	$ 0
Tax Year 2012 [Member]
Income Tax Contingency [Line Items]
Open tax years	2012
Tax Year 2013 [Member]
Income Tax Contingency [Line Items]
Open tax years	2013
Tax Year 2014 [Member]
Income Tax Contingency [Line Items]
Open tax years	2014
Latest Tax Year [Member]
Income Tax Contingency [Line Items]
Open tax years	2015