| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
| | Three Months Ended | | Nine Months Ended | | | September 30, | | September 30, | | | 2018 | | 2017 | | 2018 | | 2017 | | | | | (as adjusted) | | | | (as adjusted) | Revenues: | | | | | | | | | Corporate clinics | | $ | | | | $ | | | | $ | | | | $ | | | Franchise operations | | | | | | | | | | | | | | | | | Total revenues | | $ | | | | $ | | | | $ | | | | $ | | | | | | | | | | | | | | | | | | | | Segment operating (loss) income: | | | | | | | | | | | | | | | | | Corporate clinics | | $ | | | | $ | | ) | | $ | | | | $ | | ) | Franchise operations | | | | | | | | | | | | | | | | | Total segment operating (loss) income | | $ | | | | $ | | | | $ | | | | $ | | | | | | | | | | | | | | | | | | | | Depreciation and amortization: | | | | | | | | | | | | | | | | | Corporate clinics | | $ | | | | $ | | | | $ | | | | $ | | | Franchise operations | | | | | | | | | | | | | | | | | Corporate administration | | | | | | | | | | | | | | | | | Total depreciation and amortization | | $ | | | | $ | | | | $ | | | | $ | | | | | | | | | | | | | | | | | | | | Reconciliation of total segment operating income (loss) to consolidated earnings (loss) before income taxes (in thousands): | | | | | | | | | | | | | | | | | Total segment operating (loss) income | | $ | | | | $ | | | | $ | | | | $ | | | Unallocated corporate | | | | ) | | | | ) | | | | ) | | | | ) | Consolidated loss from operations | | | | ) | | | | ) | | | | ) | | | | ) | Bargain purchase gain | | | | | | | | | | | | | | | | | Other (expense) income, net | | | | ) | | | | | | | | ) | | | | ) | Loss before income tax expense | | $ | | ) | | $ | | ) | | $ | | ) | | $ | | ) | |
| Reconciliation of Assets from Segment to Consolidated [Table Text Block] |
| | | September 30, | | December 31, | | | | 2018 | | 2017 | | Segment assets: | | | | | | Corporate clinics | | $ | 8,906 | | | $ | 8,998 | | | Franchise operations | | | 4,221 | | | | 3,888 | | | Total segment assets | | $ | 13,127 | | | $ | 12,886 | | | | | | | | | | | | | Unallocated cash and cash equivalents and restricted cash | | $ | 5,796 | | | $ | 4,320 | | | Unallocated property and equipment | | | 234 | | | | 765 | | | Other unallocated assets | | | 647 | | | | 465 | | | Total assets | | $ | 19,804 | | | $ | 18,436 | | |