CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (526)	$ (1,862)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	1,174	1,100
Loss on disposal of property, plant and equipment	0	10
Stock-based compensation expense	375	389
Deferred tax benefit	(37)	0
Changes in operating assets and liabilities, net of effects of business acquisitions:
Accounts receivable	1,450	1,118
Inventory	101	(477)
Prepaid and other assets	14	(192)
Accounts payable and accrued liabilities	(111)	335
Deferred revenue	(317)	(239)
NET CASH PROVIDED BY OPERATING ACTIVITIES	2,123	182
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property, plant and equipment	(800)	(2,439)
Cash proceeds from sale of property, plant and equipment	10	23
Additions to intangible assets	(58)	(128)
Payments for business acquisitions, net of cash acquired	0	(7,261)
NET CASH USED IN INVESTING ACTIVITIES	(848)	(9,805)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercise of stock options	0	342
Proceeds from long-term debt	0	5,600
Repayments of long-term debt	(451)	(3,062)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(451)	2,880
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	824	(6,743)
CASH AND CASH EQUIVALENTS, beginning of period	4,675	12,435
CASH AND CASH EQUIVALENTS, end of period	5,499	5,692
SUPPLEMENTAL CASH FLOW DISCLOSURES:
Income taxes paid	3	0
Interest paid on long-term debt	64	91
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Issuance of common stock for acquisition	0	1,889
Issuance of common stock for lease	83	0
Unpaid consideration related to acquisitions	0	52
Transfer of equipment to inventory	166	130
Property, plant and equipment financed through accounts payable	$ 89	$ 66