CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities:
Net Income	$ 799,128	$ 1,215,034
Adjustments to reconcile net income to total cash provided by operating activities:
Depreciation and amortization	3,223,160	3,201,843
Stock based compensation	619,521	695,672
Change in deferred income taxes	(206,000)	303,000
Net changes in:
Trade accounts receivable	1,882,088	1,354,322
Accounts payable and accrued liabilities	(584,843)	13,624
Prepaid expenses and other assets	11,270	24,846
Total cash provided by operating activities	5,744,324	6,808,341
Investing Activities:
Purchases of property, plant and equipment	(2,378,055)	(2,904,766)
Net (funding) release of restricted cash reserves and security bonds	(8,138,125)	39,061
Total cash used by investing activities	(10,516,180)	(2,865,705)
Financing Activities:
Issuance of common stock	2,298,215	44,949
Distributions to non-controlling interest	(2,511,484)	(2,102,658)
Proceeds from notes payable, net of issuance costs	19,178,930	0
Principal payments on notes payable and other obligations	(2,945,643)	(2,020,719)
Principal payment on capital lease obligations	0	(20,919)
Principal payment on note for subsidiary acquisition	(1,597,000)	0
Total cash provided (used) by financing activities	14,423,018	(4,099,347)
Increase (Decrease) in Cash and Cash Equivalents	9,651,162	(156,711)
Cash and Cash Equivalents, Beginning of Period	8,654,375	12,994,975
Cash and Cash Equivalents, End of Period	18,305,537	12,838,264
Non-cash investing and financing activities:
Accrual for purchases of property and equipment	135,075	63,321
Other Items:
Interest paid	$ 1,888,827	$ 1,932,237