NOTE 5 - COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS - Balance Sheet Items - (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Notes to Financial Statements
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 736	$ 736
Total Costs and estimated earnings in excess of billings on uncompleted contracts	$ 736	$ 736

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant