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LOSS PER SHARE (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 07, 2014	Aug. 11, 2014	Dec. 31, 2014
Transactions
Common stock, par value (in dollars per share)	$ 0.01				$ 0.01
Weighted-average shares outstanding	18,070,384	13,412,904
Dutch auction tender offer
Transactions
Number of shares repurchased			5,203,986
Purchase price (in dollars per share)			$ 4.62
Share Purchase Agreement \| Zhen Fa New Energy (U.S.) Co. Ltd. (Purchaser) \| Expected
Transactions
Number of shares issued				9,210,710
Common stock, par value (in dollars per share)				$ 0.01
Purchase price				$ 21,664
Price per share (in dollars per share)				$ 2.35
STR Holdings Incorporated \| Share Purchase Agreement \| Zhen Fa New Energy (U.S.) Co. Ltd. (Purchaser) \| Expected
Transactions
Percentage of outstanding shares upon closing of transaction (as a percent)				51.00%