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BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Common stock, par value per share $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 200,000,000us-gaap_CommonStockSharesAuthorized 200,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 2,301,849us-gaap_CommonStockSharesIssued 2,301,849us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 2,301,849us-gaap_CommonStockSharesOutstanding 2,301,849us-gaap_CommonStockSharesOutstanding
Undesignated preferred stock [Member]    
Preferred stock, par value per share $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
Preferred stock, shares authorized 9,999,942us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
9,999,942us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
0us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_UndesignatedPreferredStockMember
Series D Convertible Non-Redeemable preferred stock [Member]    
Preferred stock, par value per share $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
Preferred stock, shares authorized 10us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
10us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
Preferred stock, shares issued 10us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
10us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
Preferred stock, shares outstanding 10us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
10us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
Preferred stock, per share liquidation preference $ 8,725us-gaap_PreferredStockLiquidationPreference
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
$ 8,725us-gaap_PreferredStockLiquidationPreference
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
Preferred stock, aggregate liquidation value $ 87,250us-gaap_PreferredStockLiquidationPreferenceValue
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesDConvertibleMember
 
Series C Convertible Non-Redeemable preferred stock [Member]    
Preferred stock, par value per share $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
Preferred stock, shares authorized 48us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
48us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
Preferred stock, shares issued 48us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
48us-gaap_PreferredStockSharesIssued
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
Preferred stock, shares outstanding 48us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
48us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
Preferred stock, per share liquidation preference $ 12,500us-gaap_PreferredStockLiquidationPreference
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
$ 12,500us-gaap_PreferredStockLiquidationPreference
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember
Preferred stock, aggregate liquidation value $ 600,000us-gaap_PreferredStockLiquidationPreferenceValue
/ us-gaap_StatementClassOfStockAxis
= BGAT_SeriesCConvertibleMember