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Note 7 - Loan Payable (Details Textual) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Two Thousand Twelve Demand Loan Facilities [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 2.50% |
Two Thousand Twelve Demand Loan Facilities [Member] | Maximum [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 14,000,000 |
Line of Credit Facility Share Repurchase Limit | 2,000,000 |
Two Thousand Twelve Demand Loan Facilities [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 14,000,000 |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.20% |
Debt Instrument, Term | 4 years |
Proceeds from Lines of Credit | $ 6,000,000 |
Other Long-term Debt, Current | $ 3,300,000 | $ 0
DLR Loan [Member] | Base Rate [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
DLR Loan [Member] |  |
Debt Instrument, Term | 30 days |
Other Long-term Debt, Current | $ 6,000,000 | 3,500,000
Amended Credit Facility [Member] |  |
Maximum Total Funded Debt to EBITDA Ratio | 2 |
Minimum Fixed Charge Coverage | 1.2 |
Line of Credit Facility, Maximum Annual Capital Expenditure Ceiling | $ 5,000,000 |
Base Rate [Member] | Operating Demand Loan [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Operating Demand Loan [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 1,000,000 |
Long-term Line of Credit | 0 |
Debt Instrument, Fee Amount | 500 |
Foreign Exchange Risk [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 3,500,000 |
Derivative Asset, Fair Value, Gross Asset | 17,000,000 |
Other Long-term Debt, Current | $ 9,281,250 | $ 3,500,000
Line of Credit Facility Covenant Period | 1 year 180 days |

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- Definition The amount that the loan facility may not exceed a specified annual capital expenditures. + References No definition available. + Details
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- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=64830801&loc=SL51823488-111719 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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