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CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) | Jul. 22, 2015
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Income Statement [Abstract] |
Common stock dividend rate | 10.00%

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- Definition Common Stock, Dividend Rate, Percentage + References No definition available. + Details
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Namespace Prefix: | srce_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration