Condensed Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Jun. 30, 2012
Cash and cash equivalents	$ 405,189	$ 278,263
Trade accounts receivable, less allowance for doubtful accounts of $289,248 as of December 31, 2012 and $201,349 as of June 30, 2012	3,764,702	3,667,086
Other receivables	7,294	11,718
Inventories, net	6,092,707	6,098,597
Prepaid expenses and other	380,595	226,596
Prepaid income taxes		3,550
Current portion of deferred income tax assets	391,250	368,348
Total current assets	11,041,737	10,654,158
Property and equipment, net	3,486,108	3,677,898
Intangible assets, net	302,396	324,715
Other assets	465,724	482,719
Deferred income tax assets, net of current portion	71,842	131,440
Total assets	15,367,807	15,270,930
Current portion of long-term debt	314,383	395,055
Line of credit	3,792,869	3,497,597
Warranty reserve	165,727	181,000
Accounts payable	2,245,329	2,413,201
Accrued expenses	425,663	386,229
Accrued payroll and benefits expense	310,673	215,218
Income tax payable	10,314
Total current liabilities	7,264,958	7,088,300
Long-term debt, net of current portion	1,698,648	1,916,315
Total liabilities	8,963,606	9,004,615
Commitments and contingencies
Common stock, no par value: Authorized 50,000,000 shares; issued 2,537,776 shares as of December 31, 2012 and 2,537,730 shares as of June 30, 2012	7,139,982	7,091,935
Accumulated deficit	(735,781)	(825,620)
Total stockholders' equity	6,404,201	6,266,315
Total liabilities and stockholders' equity	$ 15,367,807	$ 15,270,930