CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,349	$ 628
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	88	153
Share-based compensation	10	3
Gain on disposal of equipment	(7)	(12)
Deferred income tax	404	66
Bad debt expense (recovery)	(13)
Changes in operating assets and liabilities:
Accounts receivable and other receivables	(655)	1,284
Deferred costs	(50)	12
Inventory	(172)	(427)
Prepaid expenses and other assets	(152)	89
Accounts payable, accrued expenses and deferred rent	(82)	(744)
Deferred revenue	39	(1)
Income taxes payable	(123)	10
Net cash provided by operating activities	636	1,061
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of equipment	(477)	(139)
Purchases of investments	(824)	(297)
Increase in notes receivable		(1,150)
Decrease (increase) in intangibles	1	(8)
Proceeds from disposal of equipment	7	12
Net cash used in investing activities	(1,293)	(1,582)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on capital lease and notes payable	(10)	(14)
Borrowings from Minnesota Bank & Trust	5,000
Payment of employee payroll taxes on net issuance of common stock	(101)
Proceeds from shares issued under ATM, net of commissions and fees		2,169
Proceeds from ESPP Contributions	10	16
Repurchases of common stock	(1,115)
Net cash provided by financing activities	3,784	2,171
Net increase in cash and cash equivalents	3,127	1,650
Cash and cash equivalents, beginning of period	5,188	4,205
Cash and cash equivalents, end of period	8,315	5,855
Noncash investing and financing activity:
Value of shares issued to employees under performance awards	266
Cash paid during the period for:
Interest	20	2
Income taxes, net of refunds	$ 299	$ 118