| Supplementary Balance Sheet Disclosures |
The detail of certain balance sheet accounts as of December 31, 2017 and September 30, 2018 (in thousands): | | | | | | | | | | December 31, 2017 | | September 30, 2018 | Other current assets: | | | | Federal income taxes receivable | $ | — |
| | $ | 1,383 |
| State income taxes receivable | 889 |
| | 1,279 |
| Other current assets | 97 |
| | 136 |
| Total other current assets | $ | 986 |
| | $ | 2,798 |
| | | | | Current portion of long-term debt and capital lease obligations: | | | | Term note | $ | 15,000 |
| | $ | — |
| Acquisition debt | 1,927 |
| | 2,118 |
| Capital leases | 324 |
| | 327 |
| Total current portion of long-term debt and capital lease obligations | $ | 17,251 |
| | $ | 2,445 |
| | | | | Other current liabilities: | | | | Federal income taxes payable | $ | 1,120 |
| | $ | 633 |
| Deferred rent | 241 |
| | 265 |
| Total other current liabilities | $ | 1,361 |
| | $ | 898 |
| | | | | Accrued liabilities: | | | | Accrued salaries and wages | $ | 2,643 |
| | $ | 1,428 |
| Accrued incentive compensation | 6,412 |
| | 4,505 |
| Accrued vacation | 2,417 |
| | 2,602 |
| Accrued insurance | 1,832 |
| | 1,933 |
| Accrued interest | 1,271 |
| | 7,299 |
| Accrued ad valorem and franchise taxes | 1,003 |
| | 2,099 |
| Accrued commissions | 461 |
| | 499 |
| Other accrued liabilities | 1,520 |
| | 1,300 |
| Total accrued liabilities | $ | 17,559 |
| | $ | 21,665 |
| | | | | Other long-term liabilities: | | | | Deferred rent | $ | 966 |
| | $ | 765 |
| Incentive compensation | 1,287 |
| | 1,263 |
| Contingent consideration | 1,125 |
| | 1,127 |
| Total other long-term liabilities | $ | 3,378 |
| | $ | 3,155 |
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