Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 315,601	$ 198,647
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	130,358	67,822
Amortization of intangible assets	180,886	71,283
Amortization of other assets	12,189	86,245
Amortization of capital lease assets	68,617	62,983
Gain on sale of property and equipment	0	(5,197)
Stock-based compensation expense	43,658	71,786
Change in allowance for doubtful accounts receivable	(12,483)	(9,118)
Change in allowance for inventory obsolescence	(31,046)	(11,827)
Amortization deferred gain on sale/leaseback	(37,612)	(37,612)
Change in fair value of earn-out liability	(375,000)	0
Change in operating assets and liabilities:
Trade accounts receivable	(713,704)	(652,811)
Inventories	255,680	255,111
Prepaid expenses	(87,373)	(88,905)
Other assets	(12,458)	(152,637)
Income tax payable/receivable	(1,784)	1,152
Accounts payable and accrued expenses	385,821	601,901
Net cash provided by operating activities	121,350	458,823
Cash flows from investing activities:
Purchase of property and equipment	(26,065)	(24,779)
Proceeds from sale of property and equipment	0	10,905
Net cash used in investing activities	(26,065)	(13,874)
Cash flows from financing activities:
Principal payments on long-term debt	(40,045)	(35,485)
Principal payments on long-term capital lease	(58,334)	(47,446)
Net change in line of credit	(1,256,325)	4,931,491
Net cash (used in) provided by financing activities	(1,354,704)	4,848,560
Net change in cash and cash equivalents	(1,259,419)	5,293,509
Cash and cash equivalents at beginning of the period	1,696,116	254,705
Cash and cash equivalents at end of the period	436,697	5,548,214
Supplemental disclosure of cash flow information:
Cash paid for interest	133,811	78,301
Supplemental disclosure of non-cash investing and financing activity:
Preferred stock dividends paid or to be paid in common stock	186,637	187,061
Inventory reclassified to demonstration equipment	$ 239,106	$ 0