Condensed Statements of Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at January 1, 2014 (in shares) at Dec. 31, 2013	8,410,493
Balance at January 1, 2014 at Dec. 31, 2013	$ 8,410	$ 50,381,348	$ 38,582,876	$ (21,115)	$ 88,951,519
Net income (loss)			$ (26,926,534)		(26,926,534)
Change in unrealized loss from interest rate swap				$ 9,727	9,727
Common stock issued upon exercise of options (in shares)	72,618
Stock Issued During Period, Value, Stock Options Exercised	$ 73	$ 447,678			447,751
Tax benefit of stock option exercise		86,000			86,000
Stock-based compensation expense		350,824			350,824
Balance at September 30, 2014 (in shares) at Sep. 30, 2014	8,483,111
Balance at September 30, 2014 at Sep. 30, 2014	$ 8,483	51,265,850	$ 11,656,342	$ (11,388)	$ 62,919,287
Balance at January 1, 2014 (in shares) at Dec. 31, 2014	8,500,555				8,500,555
Balance at January 1, 2014 at Dec. 31, 2014	$ 8,501	$ 51,440,770	13,373,601	$ (9,716)	$ 64,813,156
Net income (loss)			$ 4,364,313		4,364,313
Change in unrealized loss from interest rate swap				$ 3,906	$ 3,906
Common stock issued upon exercise of options (in shares)	25,352				55,000
Stock Issued During Period, Value, Stock Options Exercised	$ 26	$ 79,974			$ 80,000
Tax benefit of stock option exercise		33,000			$ 33,000
Balance at September 30, 2014 (in shares) at Sep. 30, 2015	8,564,417				8,564,417
Balance at September 30, 2014 at Sep. 30, 2015	$ 8,564	52,045,208	$ 17,737,914	$ (5,810)	$ 69,785,876
Stock-based compensation expense (in shares)	38,510
Stock-based compensation expense	$ 37	$ 491,464			$ 491,501