Inventories (Details Textual) (USD $)	12 Months Ended
Dec. 31, 2013
Inventories [Abstract]
Increase in inventory reserve	$ 41,381cws_IncreaseDecreaseInInventoryReserve

Increase (decrease) in inventory reserve is an accounting entry that reflects a reduction in the market value of a company's inventory.

No definition available.

Name:	cws_IncreaseDecreaseInInventoryReserve
Namespace Prefix:	cws_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration