Earnings Per Share (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2017 USD ($) $ / shares	Sep. 30, 2017 USD ($) $ / shares	Jun. 30, 2017 USD ($) $ / shares	Mar. 31, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($) $ / shares	Sep. 30, 2016 USD ($) $ / shares	Jun. 30, 2016 USD ($) $ / shares	Mar. 31, 2016 USD ($) $ / shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares
Notes to Financial Statements
Earnings (loss) per share - diluted | $ / shares	$ (0.52)	$ (0.55)	$ (0.17)	$ (0.40)	$ 0.11	$ (0.37)	$ 0.03	$ (0.04)	$ (1.64)	$ (0.26)
Earnings (loss) per share - basic | $ / shares	$ (0.52)	$ (0.55)	$ (0.17)	$ (0.40)	$ 0.11	$ (0.37)	$ 0.03	$ (0.04)	$ (1.64)	$ (0.26)
Net income (loss) | $	$ (2,759,748)	$ (2,927,249)	$ (890,735)	$ (2,147,252)	$ 597,177	$ (1,953,497)	$ 151,030	$ (198,987)	$ (8,724,984)	$ (1,404,277)
Weighted average shares outstanding - diluted | shares									5,307,133	5,307,694
Weighted average shares outstanding - basic | shares									5,307,133	5,307,694
Common share equivalents excluded from diluted shares									0	574