8. Stockholders' Equity (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Dividends Declared	$ 366,756	$ 364,747	$ 1,098,946	$ 947,186
Compensation Expense	$ 52,000	$ 92,000	$ 130,000	$ 119,000
Stock-based compensation expense related to stock options is net of estimated forfeitures	17.00%	20.00%	17.00%	20.00%
Closing price of common stock	$ 8.64		$ 8.64
Total intrinsic value of options exercised	$ 662,488		$ 662,488
Stock Options exercised			123,750	70,115
Unamortized compensation cost related to unvested stock option awards	$ 126,000		$ 126,000
Unamortized compensation cost vesting period			1 year 2 months 5 days
Weighted average estimated fair value of stock options granted	$ 1.87		$ 1.60
2005 Plan [Member]
Shares reserved	1,135		1,135
2014 Plan [Member]
Shares reserved	650,000		650,000