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LIQUIDATED DAMAGES (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
LIQUIDATED DAMAGES [Abstract]    
Liquidation damages (in hundredths) 1.50%ztho_LiquidationDamages  
Liquidation damages base period each 30-day period or pro rata for any portion thereof following the Filing Deadline for which no registration statement was filed  
Maximum period to file a registration statement 30 days  
Accrued liquidated damages, current $ 36,178ztho_AccruedLiquidatedDamagesCurrent $ 36,178ztho_AccruedLiquidatedDamagesCurrent