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Inventories (Details) - USD ($)	Sep. 30, 2017	Jun. 30, 2017
Inventory Disclosure [Abstract]
Parts inventory	$ 1,741,000	$ 1,789,000
Work in process	183,000	205,000
Finished goods	790,000	745,000
Less: Reserve for obsolescence	(260,000)	(180,000)
Total	$ 2,454,153	$ 2,559,485

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.

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