Condensed Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 1,665,739	$ 966,183
Trade accounts receivable, less allowance for doubtful accounts of $437,123 as of December 31, 2016 and $389,050 as of June 30, 2016	3,384,968	3,523,731
Other receivables	39,501	10,946
Inventories, net	5,584,635	4,997,254
Prepaid expenses	430,751	256,735
Total current assets	11,105,594	9,754,849
Property and equipment, net	4,569,570	4,777,565
Intangible assets, net	144,783	160,123
Other assets	538,891	579,661
Total assets	16,358,838	15,272,198
Current liabilities:
Current portion of long-term debt	134,351	137,283
Current portion of capital lease	188,487	183,302
Current portion of deferred gain	150,448	150,448
Warranty reserve	151,579	152,605
Accounts payable	2,792,693	1,914,342
Accrued expenses	286,460	358,287
Accrued payroll and benefits expense	894,743	1,034,688
Income tax payable	3,961	2,895
Total current liabilities	4,602,722	3,933,850
Long-term debt, net of current portion	471,884	553,191
Capital lease, net of current portion	3,185,989	3,281,547
Deferred gain, net of current portion	1,755,225	1,830,449
Deferred rent	104,417	85,151
Total liabilities	10,120,237	9,684,188
Commitments and contingencies
Stockholders' equity:
Preferred stock, no par value: Authorized 50,000,000 shares; 2,000,000 shares and 1,610,000 shares issued and outstanding as of December 31, 2016 and June 30, 2016, respectively	4,636,706	3,708,152
Common stock, no par value: Authorized 100,000,000 shares; 2,882,272 shares and 2,805,280 shares issued and outstanding as of December 31, 2016 and June 30, 2016, respectively	7,826,646	7,545,880
Accumulated deficit	(6,224,751)	(5,666,022)
Total stockholders' equity	6,238,601	5,588,010
Total liabilities and stockholders' equity	$ 16,358,838	$ 15,272,198