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Supplementary Data (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Other current assets:    
Income taxes receivable $ 0 $ 1,932
Other current assets 106 102
Total other current assets 106 2,034
Current portion of long-term debt and capital lease obligations    
Long-term Debt 14,027 13,021
Capital leases 237 246
Total current portion of long-term debt and capital lease obligations 14,265 13,267
Other current liabilities:    
Income taxes payable 3,069 509
Deferred rent 216 208
Total other current liabilities 3,285 717
Accrued liabilities    
Accrued salaries and wages 1,331 4,005
Accrued incentive compensation 2,049 8,237
Accrued vacation 2,581 2,305
Accrued insurance 2,075 1,726
Accrued interest 192 1,235
Accrued ad valorem and franchise taxes 1,178 981
Accrued commissions 379 543
Other accrued liabilities 1,609 1,059
Total accrued liabilities 11,394 20,091
Other long-term liabilities:    
Deferred rent 1,149 1,207
Incentive compensation 0 575
Contingent consideration 649 785
Total other long-term liabilities 1,798 2,567
Term Loan [Member] | Credit Agreement [Member]    
Current portion of long-term debt and capital lease obligations    
Long-term Debt 12,188 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 $ 1,840 $ 1,771