Note 8. Line of Credit (Details)	3 Months Ended
	Sep. 30, 2017 USD ($)
Details
Line of Credit Facility, Description	On September 28, 2017, the Company modified its credit agreement with Bank of the West and entered into an Amended Credit Facility (the “Amended Credit Facility”) to provide asset-based financing to the Company to be used for funding the acquisition of substantially all of the assets of Bird & Cronin, Inc., a Minnesota corporation (“B&C”) (See note 10) and for operating capital. The Amended Credit Facility provides for revolving credit borrowings by the Company up to the lesser of $11,000,000 or the calculated borrowing base. The borrowing base is computed monthly and is equal to the sum of stated percentages of eligible accounts receivable and inventory, less a reserve. Amounts outstanding bear interest at LIBOR plus 2.25%. The Company paid a commitment fee of .25% and the line is subject to an unused line fee of .25%. The maturity date is September 30, 2019. The Company’s obligations under the Amended Credit Facility are secured by a first-priority security interest in substantially all of its assets, including those of its subsidiaries. The Amended Credit Facility includes financial covenants, such as ratios for consolidated leverage and fixed charge coverage, and customary affirmative and negative covenants for a credit facility of this type, including, among others, the provision of annual, quarterly and monthly financial statements and compliance certificates, maintenance of property, insurance, compliance with laws and environmental matters, restrictions on incurrence of indebtedness, granting of liens, making investments and acquisitions, paying dividends, entering into affiliate transactions and asset sales. The Amended Credit Facility also contains penalties in connection with customary events of default, including, among others, payment, bankruptcy, representation and warranty, covenant, change in control, judgment and events or conditions that have a Material Adverse Effect (as defined in the Amended Credit Facility). As of September 30, 2017, the Company had borrowed approximately $7,103,000 under the Amended Credit Facility compared to $2,172,000 as of June 30, 2017, which included $5,000,000 drawn on September 29, 2017, in anticipation of closing the B&C acquisition on October 2, 2017. There was approximately $2,030,000 available to borrow under the original loan and security agreement as of September 30, 2017.
Line of Credit Facility, Current Borrowing Capacity	$ 11,000,000