14. Segment information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Revenues from unaffiliated customers	$ 7,990,073	$ 7,986,192
Operating income (loss)	3,098,831	(2,774,881)
Net income (loss)	2,424,394	(4,313,420)
Identifiable assets	46,461,059	53,984,409
Depreciation and amortization	3,218,794	3,268,153
Capital expenditures	41,384	631
Rental Income And Management Fee Member
Revenues from unaffiliated customers	7,700,744	7,986,192
Operating income (loss)	3,474,243	(2,647,401)
Net income (loss)	2,772,102	(4,367,631)
Identifiable assets	3,875,491	43,351,124
Depreciation and amortization	3,216,908	3,268,153
Capital expenditures	15,238	631
Consumer product sales
Revenues from unaffiliated customers	289,299	0
Operating income (loss)	(138,918)	0
Net income (loss)	(110,081)	0
Identifiable assets	514,459	0
Depreciation and amortization	1,886	0
Capital expenditures	26,146	0
Corporation
Operating income (loss)	(236,494)	(127,480)
Net income (loss)	(237,627)	54,211
Identifiable assets	7,191,609	10,633,285
Depreciation and amortization	$ 0	$ 0