Condensed Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities
Net loss	$ (18,262,494)	$ (12,811,610)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property, plant and equipment	679,303	644,790
Amortization of customer intangible assets	93,029	0
Stock-based compensation, net	1,274,616	1,263,529
Impairment of PPA project costs	1,890,357	0
Equity in loss of investee company	242,902	495,119
Gain on investment in investee company	0	(1,257,407)
Interest accreted on note receivable	(12,033)	(9,107)
Changes in assets and liabilities
Accounts receivable	(59,540)	937,931
Inventories	(671,825)	154,853
Prepaids and other current assets	(154,470)	(145,723)
Refundable income taxes	0	91,191
Deferred PPA project costs	(7,580,664)	0
Deferred customer project costs	(419,765)	0
Project assets	(1,003,631)	0
Accounts payable	(487,518)	467,102
Accrued expenses	(749,667)	(1,473,945)
Customer deposits	(975,803)	436,010
Accrued compensation and benefits	21,736	40,170
Deferred revenue	13,290,000	0
Net cash used in operating activities	(12,885,467)	(11,167,097)
Cash flows from investing activities
Cash paid for business combination	(225,829)	0
Changes in restricted cash	60,193	9,708
Expenditures for property and equipment	(406,917)	(427,499)
Issuance of note receivable	0	(150,000)
Net cash used in investing activities	(572,553)	(567,791)
Cash flows from financing activities
Payment of financing costs	(261,982)	(545,825)
Repayments of long term debt	(319,607)	(1,018,062)
Proceeds from equipment financing	331,827	0
Payments for finance leases	(13,521)	0
Proceeds from issuance of preferred stock	13,300,000	0
Proceeds from issuance of common stock	6,800,000	14,837,760
Common stock issuance costs	0	(1,148,023)
Contribution of capital from noncontrolling interest	53,614	13,756
Net cash provided by financing activities	19,890,331	12,139,606
Effect of exchange rate changes on cash and cash equivalents	(683)	(7,978)
Net increase in cash and cash equivalents	6,431,628	396,740
Cash and cash equivalents - beginning of year	10,757,461	10,360,721
Cash and cash equivalents - end of year	17,189,089	10,757,461
Cash paid for interest	47,568	114,236
Supplemental noncash information:
Right of use asset obtained in exchange for new operating lease	41,048	0
Asset retirement obligation	$ 18,527	$ 0