CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,955	$ 1,988
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	384	366
Share-based compensation	378	575
Unrealized (gain) loss on marketable equity investments	(408)	152
Non-cash lease expense	1	8
Amortization of loan fees	4	4
Gain on sale of investments	(7)
Impairment of long-lived assets		46
Deferred income taxes	33
Bad debt expense	2	2
Changes in operating assets and liabilities:
Accounts receivable	3,187	2,081
Deferred costs	(167)	(231)
Inventory	(2,457)	(848)
Prepaid expenses and other assets	(874)	(577)
Accounts payable and accrued expenses	147	(376)
Deferred revenue	(162)	434
Income taxes payable	481	595
Net cash provided by operating activities	2,497	4,219
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of investments		(334)
Purchases of equipment and improvements	(687)	(1,072)
Proceeds from sale of investments	89
Increase in intangibles		(24)
Net cash used in investing activities	(598)	(1,430)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchases of common stock	(1,349)	(672)
Proceeds from exercise of options and ESPP contributions	45	30
Payment of employee payroll taxes on net issuance of common stock	(223)
Proceeds from Minnesota Bank & Trust revolving loan	1,800
Principal payments on notes payable and revolving loan	(2,639)	(616)
Net cash used in financing activities	(2,366)	(1,258)
Net increase (decrease) in cash and cash equivalents	(467)	1,531
Cash and cash equivalents, beginning of period	849	3,721
Cash and cash equivalents, end of period	382	5,252
Cash paid during the period for:
Interest	257	198
Income taxes	841	785
Non-cash investing and financing activity:
Cashless stock option exercise		$ 45