XML 40 R25.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 18 - Other Supplemental Information | 12 Months Ended
--- | ---
Dec. 31, 2017
Notes to Financial Statements |
Additional Financial Information Disclosure [Text Block] |
18. | Other supplemental information
|  |  | 2017 |  |  |  | 2016 |
Cash payments made during the period |  |  |  |  |  |  |  |
Income taxes, net of refunds |  | $ | 43,374 |  |  | $ | 36,349 |
Interest |  |  | 11,168 |  |  |  | 7,980 |
Non-cash financing activities |  |  |  |  |  |  |  |
Increases in capital lease obligations |  | $ | 123 |  |  | $ | 988 |
Dividends declared but not paid |  |  | 1,947 |  |  |  | 1,932 |
Other expenses |  |  |  |  |  |  |  |
Rent expense |  | $ | 65,982 |  |  | $ | 57,850 |

X
- Definition The entire disclosures of supplemental information, including descriptions and amounts, related to the balance sheet, income statement, and/or cash flow statement. + References No definition available. + Details
Name: | us-gaap_AdditionalFinancialInformationDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration