401(k) Plan (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
401(k) Plan (Textual)
Eligibility age of employees for 401(k) Plan	21 years
Description of contribution in 401(k) Plan	Company made matching contributions to the Plan of up to 100% of the first 3% of employee salary and 50% of the next 2% of employee salary.
Total expense relating to 401(k) Plan	$ 226,953	$ 162,304	$ 126,224

- Definition

Description of the terms and benefits provided by the employer's defined contribution plans. A defined contribution plan provides benefits in return for services rendered, provides an individual account for each participant, and has terms that specify how contributions to the individual's account are to be determined rather than the amount of benefits the individual is to receive. Under a defined contribution pension plan, the benefits a participant will receive depend solely on the amount contributed to the participant's account, the returns earned on investments of those contributions, and forfeitures of other participants' benefits that may be allocated to such participant's account. A description of the plan(s) including employee groups covered, the basis for determining contributions, and the nature and effects of significant matters affecting comparability of information for all periods presented.

+ References+ Details