|
Defined Contribution Plan (Details Textual) (USD $)
|
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Noncash Contribution Expense | $ 17,000 | |||
| Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 28,530 | $ 18,251 | $ 42,800 | $ 0 |