NOTE 5 - COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS - Information relating to uncompleted contracts - (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Notes to Financial Statements
Costs incurred on uncompleted contracts	$ 448	$ 1,031
Estimated earnings	310	999
Subtotal	758	2,030
Less: Billings to date	671	1,294
Total Costs and estimated earnings in excess of billings on uncompleted contracts	$ 87	$ 736

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 35
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57795-111642

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(c)(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 35
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57807-111642

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant