Earnings Per Share (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares	Sep. 30, 2016 USD ($) $ / shares	Jun. 30, 2016 USD ($) $ / shares	Mar. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares	Sep. 30, 2015 USD ($) $ / shares	Jun. 30, 2015 USD ($) $ / shares	Mar. 31, 2015 USD ($) $ / shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares
Notes to Financial Statements
Earnings (loss) per share - diluted | $ / shares	$ 0.11	$ (0.37)	$ 0.03	$ (0.04)	$ (0.05)	$ (0.12)	$ 0.02	$ (0.07)	$ (0.26)	$ (.22)	$ 0.16
Earnings (loss) per share - basic | $ / shares	$ 0.11	$ (0.37)	$ 0.03	$ (0.04)	$ (.05)	$ (.12)	$ .02	$ (.07)	$ (0.26)	$ (.22)	$ 0.16
Net income (loss) | $	$ 597,177	$ (1,953,497)	$ 151,030	$ (198,987)	$ (248,956)	$ (649,510)	$ 112,381	$ (396,785)	$ (1,404,277)	$ (1,182,870)	$ 846,361
Effect of diluted securities										0	5,405
Weighted average shares outstanding - diluted									5,307,694	5,335,540	5,346,552
Weighted average shares outstanding - basic									5,307,694	5,335,540	5,341,147
Common share equivalents excluded from diluted shares									574	2,761