| Schedule of Long-term Debt Instruments [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | $200,000 revolving loan, LIBOR plus 2.25% - 3.25% with interest payable at least once every three months through August 2018 | | $ | - | | | $ | 19,700 | | $250,000 term loan, LIBOR plus 2.25% - 3.25% with principal payable quarterly beginning March 31, 2015 and interest payable at least once every three months, repaid October 2016 | | | - | | | | 231,250 | | | $60,000 term loan, LIBOR plus 2.25% - 3.25% with principal payable quarterly beginning December 31, 2014 and interest payable at least once every three months, repaid October 2016 | | | - | | | | 54,000 | | Capital lease obligations | | | 3,611 | | | | - | | | | | | 3,611 | | | | 304,950 | | Unamortized discount on debt | | | - | | | | (4,879 | ) | | | | | 3,611 | | | | 300,071 | | | | | | 1,721 | | | | 31,375 | | Total long-term obligations, less current portion | | $ | 1,890 | | | $ | 268,696 | | |