CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Change in:
Net cash provided by (used in) operating activities	$ (356,645)	$ 2,478,158
Cash flows from investing activities
Additions to property, plant and equipment and construction in progress	(954,671)	(442,915)
Proceeds from sale of equipment	15,000	600
Acquisition of business, net of cash acquired	(7,742,853)	0
Collections on loans receivable	449,338	421,149
Release of restricted cash	423,405	0
Net cash used in investing activities	(7,809,781)	(21,166)
Cash flows from financing activities
Dividends paid to CWCO common shareholders	(1,107,759)	(1,103,093)
Dividends paid to CWCO preferred shareholders	(2,910)	(2,763)
Repurchase of redeemable preferred stock	(6,083)	0
Proceeds received from exercise of stock options	50,420	145,147
Note payable to related party	490,000	0
Repayments of demand loan payable	(500,000)	(500,000)
Net cash used in financing activities	(1,076,332)	(1,460,709)
Effect of exchange rate changes on cash	647	44,956
Net increase (decrease) in cash and cash equivalents	(9,242,111)	1,041,239
Cash and cash equivalents at beginning of period	44,792,734	35,713,689
Cash and cash equivalents at end of period	35,550,623	36,754,928
Interest paid in cash	32,896	39,962
Non-cash investing and financing activities
Dividends declared but not paid	1,111,795	1,107,834
Transfers from (to) inventory to (from) property, plant and equipment and construction in progress	69,920	(647)
Transfers from construction in progress to property, plant and equipment	$ 83,903	$ 95,786