Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net earnings	$ 1,309,958	$ 1,380,334
Adjustments to reconcile net earnings to net cash provided (used) by operating activities:
Depreciation and amortization	47,331	44,666
Bad debt expense	440	7,907
Inventory reserve	15,142	3,409
Provision (benefit) for deferred income taxes	20,429	(9,850)
(Increase) decrease in operating assets
Accounts and trade notes receivables	(1,561,475)	(1,314,813)
Inventories	164,982	494,044
Refundable income taxes	197,764	(24,670)
Lease and mortgage receivables	12,000	1,392
Prepaid vendor deposits	(1,077,000)	311,258
Prepaid and other current assets	(54,412)	12,267
Increase (decrease) in operating liabilities:
Accounts payable and accrued expenses	2,414,198	(3,254,053)
Accrued employee expenses	95,945	$ (390,050)
Income taxes payable	258,074
Deferred income	(5,526)
Customer deposits	(1,383,098)	$ (948,401)
Net cash provided (used) by operating activities	454,752	(3,686,560)
Investing activities:
Capital expenditures	(1,563)	(58,021)
Net cash used by investing activities	(1,563)	(58,021)
Financing activities:
Dividends paid	(1,406,746)	(1,406,746)
Net cash used by financing activities	(1,406,746)	(1,406,746)
Net idecrease in cash and cash equivalents	(953,557)	(5,151,327)
Cash and cash equivalents at beginning of period	3,908,974	9,224,340
Cash and cash equivalents at end of period	2,955,417	4,073,013
Supplemental information:
Cash paid during the period for income taxes	$ 316,000	$ 869,000