Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities
Net loss	$ (9,061,765)	$ (8,352,255)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation of property, plant and equipment	290,132	345,209
Amortization of customer intangible assets	68,044	14,447
Stock-based compensation, net	1,055,105	463,539
Equity in (gain) loss of investee company	1,732	68,597
Provision for inventory reserve	181,197	0
Gain on sale of property and equipment	(8,432)	0
Interest accreted on note receivable	(6,049)	(6,049)
Gain on bargain purchase	0	(76,437)
Changes in assets and liabilities
Accounts receivable	(203,639)	27,385
Inventories	(150,332)	(1,475,481)
Prepaids and other current assets	350,392	(154,961)
Deferred PPA project costs	5,690,307	(159,978)
Deferred customer project costs	255,258	0
Project assets	1,179,678	(5,603,034)
Accounts payable	112	354,301
Accrued expenses	246,610	(731,570)
Customer deposits	9,807	(112,358)
Accrued compensation and benefits	15,050	37,737
Deferred revenue	422,638	13,290,000
Other long-term liabilities	137,983	0
Net cash provided by (used in) operating activities	473,828	(2,070,908)
Cash flows from investing activities
Cash paid for business combination	0	(225,829)
Change in restricted cash	0	(30)
Expenditures for property and equipment	(9,149)	(10,416)
Proceeds from sale of property and equipment	9,754	0
Net cash provided by (used in) investing activities	605	(236,275)
Cash flows from financing activities
Payment of financing costs	0	(261,982)
Repayments of long-term debt	(165,083)	(161,012)
Proceeds from issuance of preferred stock	0	13,300,000
Proceeds from issuance of common stock	0	6,800,000
Proceeds from the exercise of stock options	68,400	0
Contributions of capital from noncontrolling interest	0	45,000
Net cash (used in) provided by financing activities	(96,683)	19,722,006
Effect of exchange rate changes on cash and cash equivalents	(568)	(1,155)
Net increase in cash and cash equivalents	377,182	17,413,668
Cash and cash equivalents - beginning of period	17,189,089	10,757,461
Cash and cash equivalents - end of period	17,566,271	28,171,129
Supplemental disclosures of cash flow information:
Cash paid for interest	26,332	27,795
Supplemental noncash information:
Right of use asset obtained in exchange for new finance lease	13,521	0
Right of use asset obtained in exchange for new operating lease	102,943	41,316
Asset retirement obligation	$ 19,222	$ 0