Statement of Stockholders Equity (USD $)
Common Shares [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Accumulated Comprehensive Income [Member]
Non-controlling Interest [Member]
Total
Beginning Balance at Mar. 31, 2010 $ 78,648 $ 83,667,011 $ (21,353,761) $ 136,693 $ 657,887 $ 63,186,478
Beginning Balance (Shares) at Mar. 31, 2010 78,647,776          
Capital stock issued as result of a direct placement closed March 4, 2011, net of issuance costs 5,112 4,926,877       4,931,989
Capital stock issued as result of a direct placement closed March 4, 2011, net of issuance costs (Shares) 5,112,000          
Stock issued from the exercise of stock options 297 328,318       328,615
Stock issued from the exercise of stock options (Shares) 297,180          
Stock issued for the stock compensation plan (restricted shares) 235 232,415       232,650
Stock issued for the stock compensation plan (restricted shares) (Shares) 235,000          
Stock issued, restricted until vesting period complete 470 28,252       28,722
Stock issued, restricted until vesting period complete (Shares) 470,000          
Initial formation contribution by non-controlling interest in Oregon USG Holdings, LLC         1,000 1,000
Stock compensation liability   1,101,114       1,101,114
Unrealized loss on investment       (27,703)   (27,703)
Net loss     (3,954,416)   (17,920) (3,972,336)
Ending Balance at Mar. 31, 2011 84,762 90,283,987 (25,308,177) 108,990 640,967 65,810,529
Ending Balance (Shares) at Mar. 31, 2011 84,761,956          
Equity interest from consolidation of non- controlling interest RREI         28,009,782 28,009,782
Equity contributions and note conversion by non-controlling interest USG Oregon         25,794,216 25,794,216
Distributions to non-controlling interest entity         (113,365) (113,365)
Stock issued from the exercise of stock options 76 83,215       83,291
Stock issued from the exercise of stock options (Shares) 76,500          
Stock issued under At Market Issuance Sales Agreement 242 125,891       126,133
Stock issued under At Market Issuance Sales Agreement (Shares) 241,989          
Stock compensation liability   2,733,627       2,733,627
Vesting of restricted shares   248,578       248,578
Unrealized loss on investment       (85,988)   (85,988)
Net loss     (6,222,129)   (4,567,155) (10,789,284)
Ending Balance at Mar. 31, 2012 $ 85,080 $ 93,475,298 $ (31,530,306) $ 23,002 $ 49,764,445 $ 111,817,519
Ending Balance (Shares) at Mar. 31, 2012 85,080,445