| Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] |
| | Year Ended March 31, 2017 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | -- | | | $ | -- | | | $ | -- | | | $ | -- | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | -- | | | $ | -- | | | $ | -- | | | $ | -- | | | | | Year Ended March 31, 2016 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | -- | | | $ | -- | | | $ | -- | | | $ | -- | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ | -- | | | $ | -- | | | $ | 9,037 | | | $ | 9,037 | | |
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
| | | | | | | | | | | | | | $ | 9,037 | | | $ | -- | | Amount related to Infitrak Acquisition | | | -- | | | | 9,271 | | Measurement period adjustment(s) | | | -- | | | | -- | | | | | | (9,152 | ) | | | -- | | Transfers in/out of Level 3 | | | -- | | | | -- | | Fair value adjustment – expense | | | 158 | | | | 85 | | Foreign exchange rate impact – included in other comprehensive loss | | | (43 | ) | | | (319 | ) | | | | $ | -- | | | $ | 9,037 | | |