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Note 8 - Noncash Investing and Financing Activities	12 Months Ended
	Dec. 31, 2018
Notes to Financial Statements
Cash Flow, Supplemental Disclosures [Text Block]	8. NONCASH INVESTING AND FINANCING ACTIVITIES The Company financed approximately $68.1 million in equipment purchases during 2018 utilizing noncash financing.

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- Definition

The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-URI http://asc.fasb.org/topic&trid=2134446

+ Details

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- References

No definition available.

+ Details

Name:	us-gaap_DisclosureTextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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