Nature of Operations and Summary of Significant Accounting Policies Purchase of Investment (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Preferred Stock [Member] \| Automated Bookkeeping, Inc. [Member]
Schedule of Cost-method Investments [Line Items]
Cost Method Investments, Original Cost	$ 5,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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