|
Consolidated Balance Sheets Parentheticals (USD $)
|
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Current assets: | ||
| Allowance for doubtful accounts | $ 2,722,436 | $ 2,745,419 |
| Customer relationships and other intangible assets, accumulated amortization | $ 9,347,494 | $ 8,749,057 |
| Stockholders' equity: | ||
| Common stock, par value | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized | 100,000,000 | 100,000,000 |
| Common stock, shares issued | 22,843,739 | 22,694,836 |
| Common stock, shares oustanding | 22,843,739 | 22,694,836 |