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Note 11 - Contract Costs (Tables) | 6 Months Ended
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Jun. 30, 2018
Notes Tables |
Capitalized Contract Cost [Table Text Block] |
|  | Three months ended June 30, 2018 |  |  | Six months ended June 30, 2018 (1 ) |
Balance, beginning of period |  | $ | 1,378 |  |  | $ | 1,404 |
Capitalization of costs |  |  | 244 |  |  |  | 439 |
Amortization of costs |  |  | (268 | ) |  |  | (489 | )
Balance, end of period |  | $ | 1,354 |  |  | $ | 1,354 |
|  | Three months ended June 30, 2018 |  |  | Six months ended June 30, 2018 |
Balance, beginning of period |  | $ | 115,660 |  |  | $ | 127,003 |
Deferral of costs |  |  | 41,177 |  |  |  | 87,160 |
Recognition of costs 1 |  |  | (41,380 | ) |  |  | (98,708 | )
Balance, end of period |  | $ | 115,456 |  |  | $ | 115,456 |

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration