Note 8 - Intangible Assets (Details Textual) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Feb. 04, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
|
| Contract with Customer, Liability, Total | $ 14,333,000 | $ 13,609,000 | ||
| Revenue from Contract with Customer, Including Assessed Tax | 10,679,376 | $ 8,646,964 | $ 36,661,660 | |
| Amortization of Intangible Assets, Total | $ 171,873 | $ 123,064 | ||
| Regional Developer Rights in South Carolina and Georgia [Member] | ||||
| Contract with Customer, Liability, Total | $ 681,500 | |||
| Revenue from Contract with Customer, Including Assessed Tax | $ 44,334 | |||
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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