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Note 6 - Debt - Interest Rate Margins (Details) | 12 Months Ended
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Dec. 31, 2016
Greater than $8 Million [Member] | Base Rate [Member] |
Interest Rate Margin on Outstanding Borrowings | 1.00%
Greater than $8 Million [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Interest Rate Margin on Outstanding Borrowings | 2.00%
$5 to $8 Million [Member] | Base Rate [Member] |
Interest Rate Margin on Outstanding Borrowings | 1.25%
$5 to $8 Million [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Interest Rate Margin on Outstanding Borrowings | 2.25%
Less than $5 Million [Member] | Base Rate [Member] |
Interest Rate Margin on Outstanding Borrowings | 1.50%
Less than $5 Million [Member] | London Interbank Offered Rate (LIBOR) [Member] |
Interest Rate Margin on Outstanding Borrowings | 2.50%

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
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X
- Details
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X
- Details
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