Supplementary Data (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Other current assets:
Income taxes receivable	$ 671	$ 1,932
Other current assets	93	102
Total other current assets	764	2,034
Current portion of long-term debt and capital lease obligations:
Long-term Debt	16,126	13,021
Capital leases	197	246
Total current portion of long-term debt and capital lease obligations	16,323	13,267
Other current liabilities:
Income taxes payable	1,579	509
Deferred rent	232	208
Total other current liabilities	1,811	717
Accrued liabilities:
Accrued salaries and wages	1,365	4,005
Accrued incentive compensation	4,864	8,237
Accrued vacation	2,614	2,305
Accrued insurance	2,053	1,726
Accrued interest	257	1,235
Accrued ad valorem and franchise taxes	2,314	981
Accrued commissions	410	543
Other accrued liabilities	1,417	1,059
Total accrued liabilities	15,294	20,091
Other long-term liabilities:
Deferred rent	1,029	1,207
Incentive compensation	924	575
Contingent consideration	770	785
Total other long-term liabilities	2,723	2,567
Term Loan [Member] | Credit Agreement [Member]
Current portion of long-term debt and capital lease obligations:
Long-term Debt	14,063	11,250
Acquisition Debt, Deferred Purchase Price [Member] | Notes Payable, Other Payables [Member]
Current portion of long-term debt and capital lease obligations:
Long-term Debt	$ 2,063	$ 1,771