SUBSEQUENT EVENT (Details)	Oct. 28, 2017 USD ($)
Note 7 - Subsequent Event [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000,000
Line of Credit Facility, Interest Rate Description	1.25%
Line Of Credit Facility Capacity Available For Specific Purpose Other Than Trade Purchases	$ 3,000,000
Line Of Credit Facility Amount Outstanding	$ 0

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.

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

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant